diff --git a/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/CallChainTreeNode.java b/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/CallChainTreeNode.java
index 38d6a49ff..436b736af 100644
--- a/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/CallChainTreeNode.java
+++ b/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/CallChainTreeNode.java
@@ -81,7 +81,7 @@ public class CallChainTreeNode {
             }
             chainNodeSpecificMonthSummaryContainer.put(keyOfMonthSummaryTable, monthSummary);
         }
-        monthSummary.summary(String.valueOf(calendar.get(Calendar.YEAR)), node);
+        monthSummary.summary(String.valueOf(calendar.get(Calendar.MONTH)), node);
     }
 
     private void summaryDayResult(String treeId, ChainNode node, Calendar calendar) throws IOException {
diff --git a/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/ChainNodeSpecificMonthSummary.java b/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/ChainNodeSpecificMonthSummary.java
index b474ddcd6..3a699b09a 100644
--- a/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/ChainNodeSpecificMonthSummary.java
+++ b/skywalking-analysis/src/main/java/com/ai/cloud/skywalking/analysis/chainbuild/entity/ChainNodeSpecificMonthSummary.java
@@ -29,11 +29,11 @@ public class ChainNodeSpecificMonthSummary {
         summaryValueMap = new HashMap<String, ChainNodeSpecificTimeWindowSummaryValue>();
     }
 
-    public void summary(String minute, ChainNode node) {
-        ChainNodeSpecificTimeWindowSummaryValue summarValue = summaryValueMap.get(minute);
+    public void summary(String month, ChainNode node) {
+        ChainNodeSpecificTimeWindowSummaryValue summarValue = summaryValueMap.get(month);
         if (summarValue == null) {
             summarValue = new ChainNodeSpecificTimeWindowSummaryValue();
-            summaryValueMap.put(minute, summarValue);
+            summaryValueMap.put(month, summarValue);
         }
 
         summarValue.summary(node);