diff --git a/dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/condition/ConditionRouter.java b/dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/condition/ConditionRouter.java
index 87e9b25a001..dbf32fde8dc 100644
--- a/dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/condition/ConditionRouter.java
+++ b/dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/condition/ConditionRouter.java
@@ -38,16 +38,15 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import static org.apache.dubbo.common.constants.CommonConstants.ENABLED_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.HOST_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.METHODS_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.METHOD_KEY;
 import static org.apache.dubbo.rpc.cluster.Constants.ADDRESS_KEY;
 import static org.apache.dubbo.rpc.cluster.Constants.FORCE_KEY;
 import static org.apache.dubbo.rpc.cluster.Constants.PRIORITY_KEY;
 import static org.apache.dubbo.rpc.cluster.Constants.RULE_KEY;
 import static org.apache.dubbo.rpc.cluster.Constants.RUNTIME_KEY;
-import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_KEY_PREFIX;
-import static org.apache.dubbo.common.constants.CommonConstants.ENABLED_KEY;
-import static org.apache.dubbo.common.constants.CommonConstants.METHODS_KEY;
-import static org.apache.dubbo.common.constants.CommonConstants.METHOD_KEY;
-import static org.apache.dubbo.common.constants.CommonConstants.HOST_KEY;
 
 /**
  * ConditionRouter
@@ -238,7 +237,7 @@ private boolean matchCondition(Map<String, MatchPair> condition, URL url, URL pa
             } else {
                 sampleValue = sample.get(key);
                 if (sampleValue == null) {
-                    sampleValue = sample.get(DEFAULT_KEY_PREFIX + key);
+                    sampleValue = sample.get(key);
                 }
             }
             if (sampleValue != null) {
diff --git a/dubbo-common/src/main/java/org/apache/dubbo/common/URL.java b/dubbo-common/src/main/java/org/apache/dubbo/common/URL.java
index 106bebc70c2..11d89cb243a 100644
--- a/dubbo-common/src/main/java/org/apache/dubbo/common/URL.java
+++ b/dubbo-common/src/main/java/org/apache/dubbo/common/URL.java
@@ -40,20 +40,19 @@
 import java.util.TreeMap;
 import java.util.concurrent.ConcurrentHashMap;
 
-import static org.apache.dubbo.common.constants.CommonConstants.HOST_KEY;
-import static org.apache.dubbo.common.constants.CommonConstants.PORT_KEY;
 import static org.apache.dubbo.common.constants.CommonConstants.ANYHOST_KEY;
 import static org.apache.dubbo.common.constants.CommonConstants.ANYHOST_VALUE;
 import static org.apache.dubbo.common.constants.CommonConstants.COMMA_SPLIT_PATTERN;
-import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_KEY_PREFIX;
 import static org.apache.dubbo.common.constants.CommonConstants.GROUP_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.HOST_KEY;
 import static org.apache.dubbo.common.constants.CommonConstants.INTERFACE_KEY;
 import static org.apache.dubbo.common.constants.CommonConstants.LOCALHOST_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.PASSWORD_KEY;
 import static org.apache.dubbo.common.constants.CommonConstants.PATH_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.PORT_KEY;
 import static org.apache.dubbo.common.constants.CommonConstants.PROTOCOL_KEY;
-import static org.apache.dubbo.common.constants.CommonConstants.VERSION_KEY;
-import static org.apache.dubbo.common.constants.CommonConstants.PASSWORD_KEY;
 import static org.apache.dubbo.common.constants.CommonConstants.USERNAME_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.VERSION_KEY;
 
 /**
  * URL - Uniform Resource Locator (Immutable, ThreadSafe)
@@ -492,11 +491,7 @@ public String getParameterAndDecoded(String key, String defaultValue) {
     }
 
     public String getParameter(String key) {
-        String value = parameters.get(key);
-        if (StringUtils.isEmpty(value)) {
-            value = parameters.get(DEFAULT_KEY_PREFIX + key);
-        }
-        return value;
+        return parameters.get(key);
     }
 
     public String getParameter(String key, String defaultValue) {
diff --git a/dubbo-common/src/main/java/org/apache/dubbo/common/URLBuilder.java b/dubbo-common/src/main/java/org/apache/dubbo/common/URLBuilder.java
index 5c926f94383..677cbe083f8 100644
--- a/dubbo-common/src/main/java/org/apache/dubbo/common/URLBuilder.java
+++ b/dubbo-common/src/main/java/org/apache/dubbo/common/URLBuilder.java
@@ -24,8 +24,6 @@
 import java.util.Map;
 import java.util.Objects;
 
-import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_KEY_PREFIX;
-
 public final class URLBuilder {
     private String protocol;
 
@@ -343,10 +341,6 @@ public boolean hasParameter(String key) {
     }
 
     public String getParameter(String key) {
-        String value = parameters.get(key);
-        if (StringUtils.isEmpty(value)) {
-            value = parameters.get(DEFAULT_KEY_PREFIX + key);
-        }
-        return value;
+        return parameters.get(key);
     }
 }
diff --git a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AbstractConfig.java b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AbstractConfig.java
index 246694822a7..e1018108a56 100644
--- a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AbstractConfig.java
+++ b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AbstractConfig.java
@@ -178,11 +178,7 @@ protected static void appendParameters(Map<String, String> parameters, Object co
                             str = URL.encode(str);
                         }
                         if (parameter != null && parameter.append()) {
-                            String pre = parameters.get(DEFAULT_KEY + "." + key);
-                            if (pre != null && pre.length() > 0) {
-                                str = pre + "," + str;
-                            }
-                            pre = parameters.get(key);
+                            String pre = parameters.get(key);
                             if (pre != null && pre.length() > 0) {
                                 str = pre + "," + str;
                             }