diff --git a/src/PicAnalysis.cpp b/src/PicAnalysis.cpp
index 15d3480..0a1e66f 100644
--- a/src/PicAnalysis.cpp
+++ b/src/PicAnalysis.cpp
@@ -294,8 +294,8 @@ vector<AnalysisResult> PicAnalysis::analysis_img(vector<sy_img> vec_img){
                         }	
                     } 
                 }
-
-                
+                delete vehicle_data;
+                vehicle_data = nullptr;
             }
 
             // 司乘