diff --git a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/skywalking/apm/plugin/jdbc/postgresql/define/Jdbc3ConnectionInstrumentation.java b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/skywalking/apm/plugin/jdbc/postgresql/define/Jdbc3ConnectionInstrumentation.java
index 54c8cc4856e480efdfa127543f2dd8bcc7c1f28b..191d8607b16ddc539741d3b9f68c49cb787b0880 100644
--- a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/skywalking/apm/plugin/jdbc/postgresql/define/Jdbc3ConnectionInstrumentation.java
+++ b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/skywalking/apm/plugin/jdbc/postgresql/define/Jdbc3ConnectionInstrumentation.java
@@ -41,8 +41,8 @@ import static org.skywalking.apm.plugin.jdbc.define.Constants.ROLLBACK_METHOD_NA
 import static org.skywalking.apm.plugin.jdbc.define.Constants.SERVICE_METHOD_INTERCEPT_CLASS;
 
 /**
- * {@link ConnectionInstrumentation} intercept the following methods that the class which extend {@link
- * org.postgresql.jdbc.PgConnection}. <br/>
+ * {@link Jdbc3ConnectionInstrumentation} intercept the following methods that the class which extend {@link
+ * org.postgresql.jdbc3.Jdbc3Connection}. <br/>
  *
  * 1. Enhance <code>prepareStatement</code> by <code>org.skywalking.apm.plugin.jdbc.define.JDBCPrepareStatementInterceptor</code>
  * 2. Enhance <code>prepareCall</code> by
diff --git a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/skywalking/apm/plugin/jdbc/postgresql/define/Jdbc4ConnectionInstrumentation.java b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/skywalking/apm/plugin/jdbc/postgresql/define/Jdbc4ConnectionInstrumentation.java
new file mode 100644
index 0000000000000000000000000000000000000000..7be5b62f6032d16adf51dbaa4f1e9a42ba7e8a22
--- /dev/null
+++ b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/skywalking/apm/plugin/jdbc/postgresql/define/Jdbc4ConnectionInstrumentation.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2017, OpenSkywalking Organization All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Project repository: https://github.com/OpenSkywalking/skywalking
+ */
+
+package org.skywalking.apm.plugin.jdbc.postgresql.define;
+
+import net.bytebuddy.description.method.MethodDescription;
+import net.bytebuddy.matcher.ElementMatcher;
+import org.skywalking.apm.agent.core.plugin.interceptor.ConstructorInterceptPoint;
+import org.skywalking.apm.agent.core.plugin.interceptor.InstanceMethodsInterceptPoint;
+import org.skywalking.apm.agent.core.plugin.interceptor.enhance.ClassInstanceMethodsEnhancePluginDefine;
+import org.skywalking.apm.agent.core.plugin.match.ClassMatch;
+
+import static net.bytebuddy.matcher.ElementMatchers.named;
+import static net.bytebuddy.matcher.ElementMatchers.takesArguments;
+import static org.skywalking.apm.agent.core.plugin.match.NameMatch.byName;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.CLOSE_METHOD_NAME;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.COMMIT_METHOD_NAME;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.CREATE_STATEMENT_INTERCEPT_CLASS;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.CREATE_STATEMENT_METHOD_NAME;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.PREPARE_CALL_INTERCEPT_CLASS;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.PREPARE_CALL_METHOD_NAME;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.PREPARE_STATEMENT_INTERCEPT_CLASS;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.PREPARE_STATEMENT_METHOD_NAME;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.RELEASE_SAVE_POINT_METHOD_NAME;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.ROLLBACK_METHOD_NAME;
+import static org.skywalking.apm.plugin.jdbc.define.Constants.SERVICE_METHOD_INTERCEPT_CLASS;
+
+/**
+ * {@link Jdbc4ConnectionInstrumentation} intercept the following methods that the class which extend {@link
+ * org.postgresql.jdbc4.Jdbc4Connection}. <br/>
+ *
+ * 1. Enhance <code>prepareStatement</code> by <code>org.skywalking.apm.plugin.jdbc.define.JDBCPrepareStatementInterceptor</code>
+ * 2. Enhance <code>prepareCall</code> by
+ * <code>org.skywalking.apm.plugin.jdbc.define.JDBCPrepareCallInterceptor</code>
+ * 3. Enhance <code>createStatement</code>
+ * by <code>org.skywalking.apm.plugin.jdbc.define.JDBCStatementInterceptor</code>
+ * 4. Enhance <code>commit, rollback, close, releaseSavepoint</code> by <code>org.skywalking.apm.plugin.jdbc.define.ConnectionServiceMethodInterceptor</code>
+ *
+ * @author zhangxin
+ */
+public class Jdbc4ConnectionInstrumentation extends ClassInstanceMethodsEnhancePluginDefine {
+
+    public static final String ENHANCE_CLASS = "org.postgresql.jdbc4.Jdbc4Connection";
+
+    @Override protected ConstructorInterceptPoint[] getConstructorsInterceptPoints() {
+        return new ConstructorInterceptPoint[0];
+    }
+
+    @Override protected InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() {
+        return new InstanceMethodsInterceptPoint[] {
+            new InstanceMethodsInterceptPoint() {
+                @Override public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named(PREPARE_STATEMENT_METHOD_NAME).and(takesArguments(4));
+                }
+
+                @Override public String getMethodsInterceptor() {
+                    return PREPARE_STATEMENT_INTERCEPT_CLASS;
+                }
+
+                @Override public boolean isOverrideArgs() {
+                    return false;
+                }
+            },
+            new InstanceMethodsInterceptPoint() {
+                @Override public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named(PREPARE_CALL_METHOD_NAME).and(takesArguments(4));
+                }
+
+                @Override public String getMethodsInterceptor() {
+                    return PREPARE_CALL_INTERCEPT_CLASS;
+                }
+
+                @Override public boolean isOverrideArgs() {
+                    return false;
+                }
+            },
+            new InstanceMethodsInterceptPoint() {
+                @Override public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named(CREATE_STATEMENT_METHOD_NAME).and(takesArguments(3));
+                }
+
+                @Override public String getMethodsInterceptor() {
+                    return CREATE_STATEMENT_INTERCEPT_CLASS;
+                }
+
+                @Override public boolean isOverrideArgs() {
+                    return false;
+                }
+            },
+            new InstanceMethodsInterceptPoint() {
+                @Override public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named(COMMIT_METHOD_NAME).or(named(ROLLBACK_METHOD_NAME)).or(named(CLOSE_METHOD_NAME)).or(named(RELEASE_SAVE_POINT_METHOD_NAME));
+                }
+
+                @Override public String getMethodsInterceptor() {
+                    return SERVICE_METHOD_INTERCEPT_CLASS;
+                }
+
+                @Override public boolean isOverrideArgs() {
+                    return false;
+                }
+            }
+        };
+    }
+
+    @Override protected ClassMatch enhanceClass() {
+        return byName(ENHANCE_CLASS);
+    }
+}
diff --git a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/resources/skywalking-plugin.def b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/resources/skywalking-plugin.def
index 816cdda1003b15a6407d025410905ad89af8a33e..3fe0ad09bc367d8700b902b01c9cd02549f88cd2 100644
--- a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/resources/skywalking-plugin.def
+++ b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/resources/skywalking-plugin.def
@@ -1,3 +1,4 @@
 postgresql-8.x=org.skywalking.apm.plugin.jdbc.postgresql.define.DriverInstrumentation
 postgresql-8.x=org.skywalking.apm.plugin.jdbc.postgresql.define.Jdbc3ConnectionInstrumentation
+postgresql-8.x=org.skywalking.apm.plugin.jdbc.postgresql.define.Jdbc4ConnectionInstrumentation
 postgresql-8.x=org.skywalking.apm.plugin.jdbc.postgresql.define.ConnectionInstrumentation