diff --git a/logPlus/PropertyWidget.cpp b/logPlus/PropertyWidget.cpp
index 34c6f83..ce7a6dd 100644
--- a/logPlus/PropertyWidget.cpp
+++ b/logPlus/PropertyWidget.cpp
@@ -2047,9 +2047,9 @@ void PropertyWidget::SlotPropertyChanged( QtProperty *pProperty, const QVariant
                     m_formInfo->m_strLineName = strLineName;
                     //m_formInfo->m_strSlfName = sFilePath;
                     //显示名称，替换曲线名
-                    if(m_formInfo->m_strAliasName.contains(strOldLineName))
+                    if(m_formInfo->m_strAliasName == strOldLineName)
                     {
-                        m_formInfo->m_strAliasName.replace(strOldLineName, strLineName);
+                        m_formInfo->m_strAliasName = strLineName;
                         //
                         for (auto it = m_propertyData.constBegin(); it != m_propertyData.constEnd(); ++it)
                         {