diff --git a/Editor/PropertyDrawers/TooltipDrawer.cs b/Editor/PropertyDrawers/TooltipDrawer.cs
index 8e0e5595..3403b001 100644
--- a/Editor/PropertyDrawers/TooltipDrawer.cs
+++ b/Editor/PropertyDrawers/TooltipDrawer.cs
@@ -31,11 +31,13 @@ namespace XCharts
             SerializedProperty m_FontSize = prop.FindPropertyRelative("m_FontSize");
             SerializedProperty m_FontStyle = prop.FindPropertyRelative("m_FontStyle");
             SerializedProperty m_ForceENotation = prop.FindPropertyRelative("m_ForceENotation");
+            SerializedProperty m_LineStyle = prop.FindPropertyRelative("m_LineStyle");
 
             ChartEditorHelper.MakeFoldout(ref drawRect, ref m_TooltipModuleToggle, "Tooltip", show);
             drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
             if (m_TooltipModuleToggle)
             {
+                EditorGUI.indentLevel++;
                 EditorGUI.PropertyField(drawRect, type);
                 drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
                 EditorGUI.PropertyField(drawRect, m_Formatter);
@@ -58,13 +60,17 @@ namespace XCharts
                 drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
                 EditorGUI.PropertyField(drawRect, m_ForceENotation);
                 drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
+                EditorGUI.PropertyField(drawRect, m_LineStyle);
+                drawRect.y += EditorGUI.GetPropertyHeight(m_LineStyle);
+                EditorGUI.indentLevel--;
             }
         }
 
         public override float GetPropertyHeight(SerializedProperty prop, GUIContent label)
         {
             if (m_TooltipModuleToggle)
-                return 12 * EditorGUIUtility.singleLineHeight + 11 * EditorGUIUtility.standardVerticalSpacing;
+                return 12 * EditorGUIUtility.singleLineHeight + 11 * EditorGUIUtility.standardVerticalSpacing +
+                    EditorGUI.GetPropertyHeight(prop.FindPropertyRelative("m_LineStyle"));
             else
                 return EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
         }
diff --git a/Runtime/Component/Main/Tooltip.cs b/Runtime/Component/Main/Tooltip.cs
index 0b8cced2..131a0bbb 100644
--- a/Runtime/Component/Main/Tooltip.cs
+++ b/Runtime/Component/Main/Tooltip.cs
@@ -58,6 +58,7 @@ namespace XCharts
         [SerializeField] private int m_FontSize = 18;
         [SerializeField] private FontStyle m_FontStyle = FontStyle.Normal;
         [SerializeField] private bool m_ForceENotation = false;
+        [SerializeField] private LineStyle m_LineStyle = new LineStyle(LineStyle.Type.Solid,0.7f);
 
         private GameObject m_GameObject;
         private GameObject m_Content;
@@ -146,6 +147,10 @@ namespace XCharts
         /// 是否强制使用科学计数法格式化显示数值。默认为false，当小数精度大于3时才采用科学计数法。
         /// </summary>
         public bool forceENotation { get { return m_ForceENotation; } set { m_ForceENotation = value; } }
+        /// <summary>
+        /// 指示线样式。
+        /// </summary>
+        public LineStyle lineStyle { get { return m_LineStyle; } set { if (value != null) m_LineStyle = value; } }
 
         /// <summary>
         /// The data index currently indicated by Tooltip.
@@ -476,5 +481,21 @@ namespace XCharts
                 return content;
             }
         }
+
+        internal Color GetLineColor(ThemeInfo theme)
+        {
+            if (lineStyle.color != Color.clear)
+            {
+                var color = lineStyle.color;
+                color.a *= lineStyle.opacity;
+                return color;
+            }
+            else
+            {
+                var color = (Color)theme.tooltipLineColor;
+                color.a *= lineStyle.opacity;
+                return color;
+            }
+        }
     }
 }
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