diff --git a/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/java/org/skywalking/apm/plugin/mongodb/v2/define/MongoDBCollectionImplInstrumentation.java b/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/java/org/skywalking/apm/plugin/mongodb/v2/define/MongoDBCollectionImplInstrumentation.java
new file mode 100644
index 000000000..b41e5078b
--- /dev/null
+++ b/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/java/org/skywalking/apm/plugin/mongodb/v2/define/MongoDBCollectionImplInstrumentation.java
@@ -0,0 +1,132 @@
+/*
+ * 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.mongodb.v2.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.any;
+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;
+
+/**
+ * {@link MongoDBCollectionImplInstrumentation} presents that skywalking intercepts {@link
+ * com.mongodb.DBCollection#find()}, {@link com.mongodb.DBCollection#mapReduce} by using {@link
+ * MongoDBCollectionMethodInterceptor}.
+ */
+public class MongoDBCollectionImplInstrumentation extends ClassInstanceMethodsEnhancePluginDefine {
+
+    private static final String ENHANCE_CLASS = "com.mongodb.DBCollectionImpl";
+
+    private static final String MONGDB_METHOD_INTERCET_CLASS = "org.skywalking.apm.plugin.mongodb.v2.MongoDBCollectionMethodInterceptor";
+
+    @Override
+    protected ConstructorInterceptPoint[] getConstructorsInterceptPoints() {
+        return new ConstructorInterceptPoint[] {
+            new ConstructorInterceptPoint() {
+                @Override
+                public ElementMatcher<MethodDescription> getConstructorMatcher() {
+                    return any();
+                }
+
+                @Override
+                public String getConstructorInterceptor() {
+                    return MONGDB_METHOD_INTERCET_CLASS;
+                }
+            }
+        };
+    }
+
+    @Override
+    protected InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() {
+        return new InstanceMethodsInterceptPoint[] {
+
+            new InterceptPoint() {
+                @Override
+                public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named("find").and(takesArguments(9));
+                }
+
+            },
+            new InterceptPoint() {
+                @Override
+                public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named("insert").and(takesArguments(4));
+                }
+
+            },
+            new InterceptPoint() {
+                @Override
+                public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named("insertImpl");
+                }
+
+            },
+            new InterceptPoint() {
+                @Override
+                public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named("update");
+                }
+            },
+            new InterceptPoint() {
+                @Override
+                public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named("updateImpl");
+                }
+
+            },
+            new InterceptPoint() {
+                @Override
+                public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named("remove").and(takesArguments(4));
+                }
+
+            },
+            new InterceptPoint() {
+                @Override
+                public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named("createIndex");
+                }
+
+            },
+
+        };
+    }
+
+    @Override
+    protected ClassMatch enhanceClass() {
+        return byName(ENHANCE_CLASS);
+    }
+
+    @Override
+    protected String[] witnessClasses() {
+        /**
+         * @see {@link com.mongodb.tools.ConnectionPoolStat}
+         */
+        return new String[] {
+            "com.mongodb.tools.ConnectionPoolStat"
+        };
+    }
+
+}
diff --git a/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/java/org/skywalking/apm/plugin/mongodb/v2/define/MongoDBCollectionInstrumentation.java b/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/java/org/skywalking/apm/plugin/mongodb/v2/define/MongoDBCollectionInstrumentation.java
index 21ec90243..ee1902339 100644
--- a/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/java/org/skywalking/apm/plugin/mongodb/v2/define/MongoDBCollectionInstrumentation.java
+++ b/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/java/org/skywalking/apm/plugin/mongodb/v2/define/MongoDBCollectionInstrumentation.java
@@ -27,6 +27,7 @@ import org.skywalking.apm.agent.core.plugin.match.ClassMatch;
 
 import static net.bytebuddy.matcher.ElementMatchers.any;
 import static net.bytebuddy.matcher.ElementMatchers.named;
+import static net.bytebuddy.matcher.ElementMatchers.takesArguments;
 import static org.skywalking.apm.agent.core.plugin.bytebuddy.ArgumentTypeNameMatch.takesArgumentWithType;
 import static org.skywalking.apm.agent.core.plugin.match.NameMatch.byName;
 
@@ -60,54 +61,19 @@ public class MongoDBCollectionInstrumentation extends ClassInstanceMethodsEnhanc
     @Override
     protected InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() {
         return new InstanceMethodsInterceptPoint[] {
+
             new InterceptPoint() {
                 @Override
                 public ElementMatcher<MethodDescription> getMethodsMatcher() {
-                    return named("find");
+                    return named("aggregate").and(takesArgumentWithType(1, "com.mongodb.ReadPreference"));
                 }
-
             },
+
             new InterceptPoint() {
                 @Override
                 public ElementMatcher<MethodDescription> getMethodsMatcher() {
-                    return named("aggregate").and(takesArgumentWithType(2, "com.mongodb.ReadPreference"));
+                    return named("findAndModify").and(takesArguments(9));
                 }
-
-            },
-            new InterceptPoint() {
-                @Override
-                public ElementMatcher<MethodDescription> getMethodsMatcher() {
-                    return named("insert").and(takesArgumentWithType(2, "com.mongodb.DBEncoder"));
-                }
-
-            },
-            new InterceptPoint() {
-                @Override
-                public ElementMatcher<MethodDescription> getMethodsMatcher() {
-                    return named("update").and(takesArgumentWithType(5, "com.mongodb.DBEncoder"));
-                }
-
-            },
-            new InterceptPoint() {
-                @Override
-                public ElementMatcher<MethodDescription> getMethodsMatcher() {
-                    return named("remove").and(takesArgumentWithType(2, "com.mongodb.DBEncoder"));
-                }
-
-            },
-            new InterceptPoint() {
-                @Override
-                public ElementMatcher<MethodDescription> getMethodsMatcher() {
-                    return named("findAndModify");
-                }
-
-            },
-            new InterceptPoint() {
-                @Override
-                public ElementMatcher<MethodDescription> getMethodsMatcher() {
-                    return named("createIndex").and(takesArgumentWithType(2, "com.mongodb.DBEncoder"));
-                }
-
             },
             /**
              *Involved db_command operation
diff --git a/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/resources/skywalking-plugin.def b/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/resources/skywalking-plugin.def
index fdf8f440c..fb8a07eab 100644
--- a/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/resources/skywalking-plugin.def
+++ b/apm-sniffer/apm-sdk-plugin/mongodb-2.x-plugin/src/main/resources/skywalking-plugin.def
@@ -1 +1,2 @@
 mongodb-2.x=org.skywalking.apm.plugin.mongodb.v2.define.MongoDBCollectionInstrumentation
+mongodb-2.x=org.skywalking.apm.plugin.mongodb.v2.define.MongoDBCollectionImplInstrumentation