diff --git a/pig-visual/pig-sentinel-dashboard/src/main/java/com/alibaba/csp/sentinel/dashboard/controller/MachineRegistryController.java b/pig-visual/pig-sentinel-dashboard/src/main/java/com/alibaba/csp/sentinel/dashboard/controller/MachineRegistryController.java
index 6e293271..ca4e767d 100644
--- a/pig-visual/pig-sentinel-dashboard/src/main/java/com/alibaba/csp/sentinel/dashboard/controller/MachineRegistryController.java
+++ b/pig-visual/pig-sentinel-dashboard/src/main/java/com/alibaba/csp/sentinel/dashboard/controller/MachineRegistryController.java
@@ -29,7 +29,6 @@ import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
-import sun.net.util.IPAddressUtil;
 
 @Controller
 @RequestMapping(value = "/registry", produces = MediaType.APPLICATION_JSON_VALUE)
@@ -51,9 +50,7 @@ public class MachineRegistryController {
 		if (StringUtil.isBlank(ip) || ip.length() > 128) {
 			return Result.ofFail(-1, "invalid ip: " + ip);
 		}
-		if (!IPAddressUtil.isIPv4LiteralAddress(ip) && !IPAddressUtil.isIPv6LiteralAddress(ip)) {
-			return Result.ofFail(-1, "invalid ip: " + ip);
-		}
+
 		if (port == null || port < -1) {
 			return Result.ofFail(-1, "invalid port");
 		}