diff --git a/client/src/main/java/com/alibaba/nacos/client/naming/net/NamingProxy.java b/client/src/main/java/com/alibaba/nacos/client/naming/net/NamingProxy.java
index f196443db6e..8a91e965ae8 100644
--- a/client/src/main/java/com/alibaba/nacos/client/naming/net/NamingProxy.java
+++ b/client/src/main/java/com/alibaba/nacos/client/naming/net/NamingProxy.java
@@ -48,7 +48,9 @@
 
 import java.io.IOException;
 import java.io.StringReader;
+import java.io.UnsupportedEncodingException;
 import java.net.HttpURLConnection;
+import java.net.URLEncoder;
 import java.util.*;
 import java.util.concurrent.*;
 
@@ -327,7 +329,11 @@ public JSONObject sendBeat(BeatInfo beatInfo, boolean lightBeatEnabled) throws N
         Map<String, String> params = new HashMap<String, String>(8);
         String body = StringUtils.EMPTY;
         if (!lightBeatEnabled) {
-            body = "beat=" + JSON.toJSONString(beatInfo);
+            try {
+                body = "beat=" + URLEncoder.encode(JSON.toJSONString(beatInfo), "UTF-8");
+            } catch (UnsupportedEncodingException e) {
+                throw new NacosException(NacosException.SERVER_ERROR, "encode beatInfo error", e);
+            }
         }
         params.put(CommonParams.NAMESPACE_ID, namespaceId);
         params.put(CommonParams.SERVICE_NAME, beatInfo.getServiceName());