diff --git a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/system/SystemRuleManager.java b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/system/SystemRuleManager.java
index 4ee5f17c..64d54be9 100755
--- a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/system/SystemRuleManager.java
+++ b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/system/SystemRuleManager.java
@@ -302,18 +302,18 @@ public final class SystemRuleManager {
         }
 
         // total qps
-        double currentQps = Constants.ENTRY_NODE == null ? 0.0 : Constants.ENTRY_NODE.passQps();
+        double currentQps = Constants.ENTRY_NODE.passQps();
         if (currentQps + count > qps) {
             throw new SystemBlockException(resourceWrapper.getName(), "qps");
         }
 
         // total thread
-        int currentThread = Constants.ENTRY_NODE == null ? 0 : Constants.ENTRY_NODE.curThreadNum();
+        int currentThread = Constants.ENTRY_NODE.curThreadNum();
         if (currentThread > maxThread) {
             throw new SystemBlockException(resourceWrapper.getName(), "thread");
         }
 
-        double rt = Constants.ENTRY_NODE == null ? 0 : Constants.ENTRY_NODE.avgRt();
+        double rt = Constants.ENTRY_NODE.avgRt();
         if (rt > maxRt) {
             throw new SystemBlockException(resourceWrapper.getName(), "rt");
         }