diff --git a/GISDlg.cpp b/GISDlg.cpp
index d4c189c..6e74a2b 100644
--- a/GISDlg.cpp
+++ b/GISDlg.cpp
@@ -1972,6 +1972,11 @@ void CGISDlg::MouseDownMap1(short Button, short Shift, long x, long y)
 				if (addPointPos>m_editLineDataGroup.linePointNum-4) return; //回收航线屏蔽4,5,6长边不让编辑
 			}
 
+			if (m_editLineDataGroup.pointNum>=127) //限制最多127个点
+			{
+				return;
+			}
+
 
 			//计算添加点坐标
 			double linePt1[2] = {m_editLineDataGroup.linePts[addPointPos-1].dX,m_editLineDataGroup.linePts[addPointPos-1].dY};
@@ -2038,6 +2043,10 @@ void CGISDlg::MouseDownMap1(short Button, short Shift, long x, long y)
 		}
 		if (m_bSetPointModel)//置点
 		{
+			if (m_designLinePointNum>=127) //限制最多127个航点
+			{
+				return;
+			}
 			
 			POINT   pt;
 			GetCursorPos( &pt );