diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java b/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
index 0455b64..aaf4cf4 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/todocenter/manage/TodoCenterManage.java
@@ -1709,6 +1709,8 @@ public class TodoCenterManage {
 
         Map<Long, Project> projectsMap = projects.stream().collect(Collectors.toMap(Project::getId, v -> v));
         Map<String, Project> projectInfoMap = projectInstList.stream()
+                .filter(p -> StringUtils.isNotBlank(p.getInstCode()) &&
+                        !TodoCenterConstant.Declared.NULL_INST_CODE.equals(p.getInstCode()))
                 .collect(Collectors.toMap(ProjectInst::getInstCode, p -> projectsMap.get(p.getProjectId())));
         // 关联项目信息
         List<Project> projectList = list.stream()