diff --git a/app/src/main/java/io/legado/app/ui/book/read/BaseReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/BaseReadBookActivity.kt
index 07f0b0d74..cb0280d48 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/BaseReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/BaseReadBookActivity.kt
@@ -38,6 +38,7 @@ import io.legado.app.ui.book.read.config.InfoConfigDialog
 import io.legado.app.ui.book.read.config.PaddingConfigDialog
 import io.legado.app.ui.book.read.config.PageKeyDialog
 import io.legado.app.ui.book.read.config.ShadowSetDialog
+import io.legado.app.ui.book.read.config.UnderlineConfigDialog
 import io.legado.app.ui.file.HandleFileContract
 import io.legado.app.utils.ColorUtils
 import io.legado.app.utils.FileDoc
@@ -150,6 +151,10 @@ abstract class BaseReadBookActivity :
         showDialogFragment<FontSelectDialog>()
     }
 
+    fun showUnderlineConfig() {
+        showDialogFragment<UnderlineConfigDialog>()
+    }
+
     fun showBgTextConfig() {
         showDialogFragment<BgTextConfigDialog>()
     }
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index 66b84c226..1cd6faa0d 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -86,6 +86,7 @@ import io.legado.app.ui.book.read.config.TipConfigDialog.Companion.B_COLOR
 import io.legado.app.ui.book.read.config.TipConfigDialog.Companion.TIP_COLOR
 import io.legado.app.ui.book.read.config.TipConfigDialog.Companion.TIP_DIVIDER_COLOR
 import io.legado.app.ui.book.read.config.ToolButtonConfigDialog
+import io.legado.app.ui.book.read.config.UnderlineConfigDialog.Companion.U_COLOR
 import io.legado.app.ui.book.read.page.ContentTextView
 import io.legado.app.ui.book.read.page.ReadView
 import io.legado.app.ui.book.read.page.entities.PageDirection
@@ -1572,6 +1573,12 @@ class ReadBookActivity : BaseReadBookActivity(),
                 setMenuCurAc(color)
                 postEvent(EventBus.UPDATE_READ_ACTION_BAR, true)
             }
+
+            U_COLOR -> {
+                setUnderlineColor(color)
+                postEvent(EventBus.UP_CONFIG, arrayListOf(2))
+                postEvent(EventBus.UP_CONFIG, arrayListOf(6, 9, 11))
+            }
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/FontConfigDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/FontConfigDialog.kt
index 605272f0a..dc9456fc8 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/config/FontConfigDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/FontConfigDialog.kt
@@ -9,7 +9,6 @@ import io.legado.app.base.BaseBottomSheetDialogFragment
 import io.legado.app.constant.EventBus
 import io.legado.app.databinding.DialogFontConfigBinding
 import io.legado.app.help.config.AppConfig
-import io.legado.app.help.config.ReadBookConfig.dottedLine
 import io.legado.app.help.config.ReadBookConfig.underline
 import io.legado.app.lib.dialogs.alert
 import io.legado.app.ui.book.read.ReadBookActivity
@@ -50,8 +49,6 @@ class FontConfigDialog : BaseBottomSheetDialogFragment(R.layout.dialog_font_conf
     private fun initView() = binding.run {
         binding.btnTextColor.color = ReadBookConfig.durConfig.curTextColor()
         binding.swUnderline.isChecked = underline
-        binding.swDottedline.isChecked = dottedLine
-        binding.swDottedline.isEnabled = underline
         dsbTextLetterSpacing.valueFormat = {
             ((it - 50) / 100f).toString()
         }
@@ -136,18 +133,10 @@ class FontConfigDialog : BaseBottomSheetDialogFragment(R.layout.dialog_font_conf
         }
 
         binding.swUnderline.addOnCheckedChangeListener { _, isChecked ->
-            underline = isChecked
-            binding.swDottedline.isEnabled = isChecked
-            if (!isChecked) {
-                dottedLine = false
-                binding.swDottedline.isChecked = false
-            }
-            postEvent(EventBus.UP_CONFIG, arrayListOf(6, 9, 11))
-        }
-        binding.swDottedline.addOnCheckedChangeListener { _, isChecked ->
-            dottedLine = isChecked
-            postEvent(EventBus.UP_CONFIG, arrayListOf(6, 9, 11))
+            callBack2?.showUnderlineConfig()
+            dismissAllowingStateLoss()
         }
+
         binding.btnDefaultFonts.setOnClickListener {
             val requireContext = requireContext()
             alert(titleResource = R.string.system_typeface) {
diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/UnderlineConfigDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/UnderlineConfigDialog.kt
new file mode 100644
index 000000000..7fbd5789c
--- /dev/null
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/UnderlineConfigDialog.kt
@@ -0,0 +1,92 @@
+package io.legado.app.ui.book.read.config
+
+import android.os.Bundle
+import android.view.View
+import io.legado.app.help.config.ReadBookConfig
+import com.jaredrummler.android.colorpicker.ColorPickerDialog
+import io.legado.app.R
+import io.legado.app.base.BaseBottomSheetDialogFragment
+import io.legado.app.constant.EventBus
+import io.legado.app.databinding.DialogUnderlineConfigBinding
+import io.legado.app.help.config.ReadBookConfig.dottedLine
+import io.legado.app.help.config.ReadBookConfig.underline
+import io.legado.app.utils.observeEvent
+import io.legado.app.utils.postEvent
+import io.legado.app.utils.viewbindingdelegate.viewBinding
+
+/**
+ * 字体选择对话框
+ */
+class UnderlineConfigDialog : BaseBottomSheetDialogFragment(R.layout.dialog_underline_config) {
+
+    companion object {
+        const val U_COLOR = 810
+    }
+
+    private val binding by viewBinding(DialogUnderlineConfigBinding::bind)
+
+    override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
+        observeEvent<ArrayList<Int>>(EventBus.UP_CONFIG) { list ->
+            if (list.contains(2)) {
+                binding.btnUnderlineColor.color = ReadBookConfig.durConfig.curUnderlineColor()
+            }
+        }
+        initView()
+    }
+
+    private fun initView() = binding.run {
+        binding.btnUnderlineColor.color = ReadBookConfig.durConfig.curTextColor()
+        binding.swUnderline.isChecked = underline
+        binding.swDottedline.isChecked = dottedLine
+        binding.swDottedline.isEnabled = underline
+
+        binding.swUnderline.addOnCheckedChangeListener { _, isChecked ->
+            underline = isChecked
+            binding.swDottedline.isEnabled = isChecked
+            if (!isChecked) {
+                dottedLine = false
+                binding.swDottedline.isChecked = false
+            }
+            postEvent(EventBus.UP_CONFIG, arrayListOf(6, 9, 11))
+        }
+
+        binding.swDottedline.addOnCheckedChangeListener { _, isChecked ->
+            dottedLine = isChecked
+            postEvent(EventBus.UP_CONFIG, arrayListOf(6, 9, 11))
+        }
+
+        binding.btnDottedLineBlack.apply {
+            progress = ReadBookConfig.durConfig.dottedBase.toInt()
+            onChanged = {
+                ReadBookConfig.durConfig.dottedBase = it.toFloat()
+                postEvent(EventBus.UP_CONFIG, arrayListOf(6, 8, 10))
+            }
+        }
+
+        binding.btnDottedLineWhile.apply {
+            progress = ReadBookConfig.durConfig.dottedRatio.toInt()
+            onChanged = {
+                ReadBookConfig.durConfig.dottedRatio = it.toFloat()
+                postEvent(EventBus.UP_CONFIG, arrayListOf(6, 8, 10))
+            }
+        }
+
+        binding.btnUnderlineColor.setOnClickListener {
+            ColorPickerDialog.newBuilder()
+                .setColor(ReadBookConfig.durConfig.curUnderlineColor())
+                .setShowAlphaSlider(false)
+                .setDialogType(ColorPickerDialog.TYPE_CUSTOM)
+                .setDialogId(U_COLOR)
+                .show(requireActivity())
+        }
+
+        binding.btnUnderlineHeight.apply {
+            progress = ReadBookConfig.underlineHeight
+            onChanged = {
+                ReadBookConfig.underlineHeight = it
+                postEvent(EventBus.UP_CONFIG, arrayListOf(8, 9, 6))
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextLine.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextLine.kt
index f91997d83..010957683 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextLine.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextLine.kt
@@ -211,16 +211,19 @@ data class TextLine(
      */
     private fun drawUnderline(canvas: Canvas, dottedLine: Boolean) {
         val paint = ChapterProvider.linePaint
-        paint.pathEffect =
-            if (dottedLine && !AppConfig.isEInkMode)
-                ChapterProvider.dashEffect
-            else
-                null
+        paint.color = ReadBookConfig.durConfig.curUnderlineColor()
+        paint.strokeWidth = ReadBookConfig.underlineHeight.toFloat()
+        paint.pathEffect = if (dottedLine && !AppConfig.isEInkMode)
+            ChapterProvider.dashEffect
+        else
+            null
+
         val lineY = height - 1.dpToPx()
         canvas.drawLine(lineStart + indentWidth, lineY, lineEnd, lineY, paint)
     }
 
 
+
     fun checkFastDraw(): Boolean {
         if (!AppConfig.optimizeRender || exceed || !onlyTextColumn || textPage.isMsgPage) {
             return false
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt b/app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt
index c0c0553aa..8ba212e30 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt
@@ -66,7 +66,7 @@ object ChapterProvider {
         }
     }
 
-    val dashEffect = DashPathEffect(floatArrayOf(dottedBase, dottedRatio), 0f)
+    var dashEffect = DashPathEffect(floatArrayOf(dottedBase, dottedRatio), 0f)
 
     @JvmStatic
     var viewWidth = 0
@@ -877,6 +877,10 @@ object ChapterProvider {
 //            reviewPaint.textSize = contentPaint.textSize * 0.45f
 //            reviewPaint.textAlign = Paint.Align.CENTER
         }
+        dashEffect = DashPathEffect(
+            floatArrayOf(ReadBookConfig.durConfig.dottedBase, ReadBookConfig.durConfig.dottedRatio),
+            0f
+        )
         //间距
         lineSpacingExtra = ReadBookConfig.lineSpacingExtra / 10f
         titleLineSpacingExtra = ReadBookConfig.titleLineSpacingExtra / 10f
diff --git a/app/src/main/res/layout/dialog_font_config.xml b/app/src/main/res/layout/dialog_font_config.xml
index 9e0e422e1..16b6d5b46 100644
--- a/app/src/main/res/layout/dialog_font_config.xml
+++ b/app/src/main/res/layout/dialog_font_config.xml
@@ -24,8 +24,9 @@
             android:id="@+id/bottom_sheet_title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_marginVertical="8dp"
             android:text="@string/text_font"
-            android:textSize="16sp"
+            android:textSize="18sp"
             android:textStyle="bold" />
 
     </LinearLayout>
@@ -64,15 +65,6 @@
             android:checkable="true"
             android:focusable="true"/>
 
-        <com.google.android.material.button.MaterialButton
-            android:id="@+id/sw_dottedline"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            style="@style/Widget.Material3Expressive.Button.IconButton.Tonal"
-            app:icon="@drawable/ic_dottedline"
-            android:checkable="true"
-            android:focusable="true"/>
-
         <com.google.android.material.button.MaterialButton
             android:id="@+id/btn_textItalic"
             android:layout_width="wrap_content"
diff --git a/app/src/main/res/layout/dialog_underline_config.xml b/app/src/main/res/layout/dialog_underline_config.xml
new file mode 100644
index 000000000..928c633a4
--- /dev/null
+++ b/app/src/main/res/layout/dialog_underline_config.xml
@@ -0,0 +1,110 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginHorizontal="16dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:gravity="center"
+        android:paddingBottom="8dp"
+        android:paddingHorizontal="16dp">
+
+        <com.google.android.material.bottomsheet.BottomSheetDragHandleView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingVertical="8dp"
+            android:minHeight="0dp"
+            android:layout_gravity="center_horizontal" />
+
+        <TextView
+            android:id="@+id/bottom_sheet_title"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginVertical="8dp"
+            android:text="@string/text_underline"
+            android:textSize="18sp"
+            android:textStyle="bold" />
+
+    </LinearLayout>
+
+    <com.google.android.material.button.MaterialButtonGroup
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="16dp"
+        android:layout_marginBottom="8dp"
+        android:gravity="center">
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/sw_underline"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            style="@style/Widget.Material3Expressive.Button.IconButton.Tonal"
+            app:icon="@drawable/ic_underline"
+            android:checkable="true"
+            android:focusable="true"/>
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/sw_dottedline"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            style="@style/Widget.Material3Expressive.Button.IconButton.Tonal"
+            app:icon="@drawable/ic_dottedline"
+            android:checkable="true"
+            android:focusable="true"/>
+
+        <io.legado.app.ui.widget.AccentColorButton
+            android:id="@+id/btnUnderlineColor"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            style="@style/Widget.Material3Expressive.Button.OutlinedButton"
+            android:text="@string/underline_color" />
+
+    </com.google.android.material.button.MaterialButtonGroup>
+
+    <io.legado.app.ui.widget.SimpleSliderView
+        android:id="@+id/btn_underline_height"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:title="@string/underline_height"
+        app:max="20" />
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="@string/text_dottedline"
+        android:layout_marginHorizontal="16dp"
+        android:layout_marginVertical="8dp"
+        android:textSize="14sp"
+        android:textStyle="bold" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="bottom">
+
+        <io.legado.app.ui.widget.SimpleSliderView
+            android:id="@+id/btn_dotted_line_black"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:layout_marginEnd="32dp"
+            app:title="@string/dotted_line_black"
+            app:max="20" />
+
+        <io.legado.app.ui.widget.SimpleSliderView
+            android:id="@+id/btn_dotted_line_while"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            app:title="@string/dotted_line_while"
+            app:max="20" />
+
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index 5b99b02a7..71508b4fc 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -1325,7 +1325,7 @@
     <string name="sort_new_to_old">从新到旧</string>
     <string name="sort_name_asc">名称升序</string>
     <string name="sort_name_desc">名称降序</string>
-    <string name="text_dottedline">文字下划虚线</string>
+    <string name="text_dottedline">下划虚线</string>
     <string name="jump_to_volume">跳转到卷</string>
     <string name="cancel_select">取消选择</string>
     <string name="coll_volume">折叠所有卷</string>
@@ -1340,4 +1340,8 @@
     <string name="text_shadow_set">阴影设置</string>
     <string name="paragraph_typeface">段落样式</string>
     <string name="same_name_book">已有相同书籍</string>
+    <string name="underline_color">下划线颜色</string>
+    <string name="dotted_line_black">实线段长</string>
+    <string name="dotted_line_while">空隙比例</string>
+    <string name="underline_height">线段高度</string>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f43b99593..cccc4f264 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1326,7 +1326,7 @@
     <string name="sort_new_to_old">从新到旧</string>
     <string name="sort_name_asc">名称升序</string>
     <string name="sort_name_desc">名称降序</string>
-    <string name="text_dottedline">文字下划虚线</string>
+    <string name="text_dottedline">下划虚线</string>
     <string name="jump_to_volume">跳转到卷</string>
     <string name="cancel_select">取消选择</string>
     <string name="coll_volume">折叠所有卷</string>
@@ -1341,4 +1341,8 @@
     <string name="text_shadow_set">阴影设置</string>
     <string name="paragraph_typeface">段落样式</string>
     <string name="same_name_book">已有相同书籍</string>
+    <string name="underline_color">下划线颜色</string>
+    <string name="dotted_line_black">实线段长</string>
+    <string name="dotted_line_while">空隙比例</string>
+    <string name="underline_height">线段高度</string>
 </resources>