diff --git a/client-adapter/es7x/src/main/java/com/alibaba/otter/canal/client/adapter/es7x/support/ESConnection.java b/client-adapter/es7x/src/main/java/com/alibaba/otter/canal/client/adapter/es7x/support/ESConnection.java
index dc7c3d143..26e9c492b 100644
--- a/client-adapter/es7x/src/main/java/com/alibaba/otter/canal/client/adapter/es7x/support/ESConnection.java
+++ b/client-adapter/es7x/src/main/java/com/alibaba/otter/canal/client/adapter/es7x/support/ESConnection.java
@@ -132,7 +132,18 @@ public MappingMetaData getMapping(String index) {
                 logger.error(e.getMessage(), e);
                 return null;
             }
+            
+            // 通过别名查询mapping返回的是真实索引名称，mappings.get(index)返回null，为兼容别名情况修改如下：
             mappingMetaData = mappings.get(index);
+            if (mappingMetaData == null && !mappings.isEmpty()) {
+                // 如果通过索引名找不到，可能是别名，取第一个映射
+                mappingMetaData = mappings.values().iterator().next();
+            }
+            
+            // 如果还是null，说明索引不存在或没有mapping
+            if (mappingMetaData == null) {
+                throw new IllegalArgumentException("Not found the mapping info of index: " + index);
+            }
         }
         return mappingMetaData;
     }
diff --git a/client-adapter/es8x/src/main/java/com/alibaba/otter/canal/client/adapter/es8x/support/ESConnection.java b/client-adapter/es8x/src/main/java/com/alibaba/otter/canal/client/adapter/es8x/support/ESConnection.java
index ae1467012..367d6c476 100644
--- a/client-adapter/es8x/src/main/java/com/alibaba/otter/canal/client/adapter/es8x/support/ESConnection.java
+++ b/client-adapter/es8x/src/main/java/com/alibaba/otter/canal/client/adapter/es8x/support/ESConnection.java
@@ -142,7 +142,18 @@ public MappingMetadata getMapping(String index) {
             logger.error(e.getMessage(), e);
             return null;
         }
+        
+        // 通过别名查询mapping返回的是真实索引名称，mappings.get(index)返回null，为兼容别名情况修改如下：
         mappingMetaData = mappings.get(index);
+        if (mappingMetaData == null && !mappings.isEmpty()) {
+            // 如果通过索引名找不到，可能是别名，取第一个映射
+            mappingMetaData = mappings.values().iterator().next();
+        }
+        
+        // 如果还是null，说明索引不存在或没有mapping
+        if (mappingMetaData == null) {
+            throw new IllegalArgumentException("Not found the mapping info of index: " + index);
+        }
 
         return mappingMetaData;
     }