diff --git a/src/main/java/com/xydl/cac/task/CacheTask.java b/src/main/java/com/xydl/cac/task/CacheTask.java
index cccdf8f..d4fc7af 100644
--- a/src/main/java/com/xydl/cac/task/CacheTask.java
+++ b/src/main/java/com/xydl/cac/task/CacheTask.java
@@ -43,8 +43,10 @@ public class CacheTask {
                     item.initComparator(item.getComparator(), item.getOperator());
                     StaticVariable.rule_Cache.put(item.getId(), item);
                 }
-                String key = item.getNSensor().getDevId() + "_" + item.getTypePoint().getField();
-                StaticVariable.ruleRelationMap.put(key, item.getId());
+                if (item.getNSensor() != null && item.getTypePoint() != null) {
+                    String key = item.getNSensor().getDevId() + "_" + item.getTypePoint().getField();
+                    StaticVariable.ruleRelationMap.put(key, item.getId());
+                }
             }
         } catch (Exception e) {
             log.error("CacheTask.refreshRule error.", e);