diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/gov/convert/ProjectConvert.java b/pmapi/src/main/java/com/ningdatech/pmapi/gov/convert/ProjectConvert.java
index f6c7930..91e7487 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/gov/convert/ProjectConvert.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/gov/convert/ProjectConvert.java
@@ -63,6 +63,9 @@ public class ProjectConvert {
 
     public static ProjectApproveReq convertApprove(GovBizProjectApproveDTO approve) {
         ProjectApproveReq req = new ProjectApproveReq();
+        if(Objects.isNull(approve)){
+            return req;
+        }
         req.setBaseProjId(approve.getBaseProjId());
         req.setBaseProjName(approve.getBaseProjName());
         req.setOp(approve.getOp());