diff --git a/sentinel-extension/sentinel-datasource-etcd/src/main/java/com/alibaba/csp/sentinel/datasource/etcd/EtcdDataSource.java b/sentinel-extension/sentinel-datasource-etcd/src/main/java/com/alibaba/csp/sentinel/datasource/etcd/EtcdDataSource.java
index bc72e8233f..33684eb82b 100644
--- a/sentinel-extension/sentinel-datasource-etcd/src/main/java/com/alibaba/csp/sentinel/datasource/etcd/EtcdDataSource.java
+++ b/sentinel-extension/sentinel-datasource-etcd/src/main/java/com/alibaba/csp/sentinel/datasource/etcd/EtcdDataSource.java
@@ -88,7 +88,8 @@ private void initWatcher() {
                 WatchEvent.EventType eventType = watchEvent.getEventType();
                 if (eventType == WatchEvent.EventType.PUT) {
                     try {
-                        T newValue = loadConfig();
+                        String newValueJson = watchEvent.getKeyValue().getValue().toString(charset);
+                        T newValue = parser.convert(newValueJson);
                         getProperty().updateValue(newValue);
                     } catch (Exception e) {
                         RecordLog.warn("[EtcdDataSource] Failed to update config", e);