diff --git a/Src/nmNum/nmPlot/nmObjLineFault.cpp b/Src/nmNum/nmPlot/nmObjLineFault.cpp
index 5acfcd8..86a6afd 100644
--- a/Src/nmNum/nmPlot/nmObjLineFault.cpp
+++ b/Src/nmNum/nmPlot/nmObjLineFault.cpp
@@ -29,12 +29,8 @@ nmObjLineFault::nmObjLineFault(const QString& sName, \
 }
 
 nmObjLineFault::~nmObjLineFault() {
-	/*
-	if (m_faultData) {
-		delete m_faultData; 
-		m_faultData = nullptr; // 置空指针
-	}
-	*/
+	// 断层数据由DataManager统一释放，图元只保存引用。
+	m_faultData = nullptr;
 }
 
 void nmObjLineFault::fillPtyPano(IxPtyPano* sheet) {