diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/scheduler/DuplicateRemovedScheduler.java b/webmagic-core/src/main/java/us/codecraft/webmagic/scheduler/DuplicateRemovedScheduler.java
index 6b7ebae..ecbeecb 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/scheduler/DuplicateRemovedScheduler.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/scheduler/DuplicateRemovedScheduler.java
@@ -32,7 +32,7 @@ public abstract class DuplicateRemovedScheduler implements Scheduler {
     @Override
     public void push(Request request, Task task) {
         logger.trace("get a candidate url {}", request.getUrl());
-        if (!duplicatedRemover.isDuplicate(request, task) || shouldReserved(request) || noNeedToRemoveDuplicate(request)) {
+        if (shouldReserved(request) || noNeedToRemoveDuplicate(request) || !duplicatedRemover.isDuplicate(request, task)) {
             logger.debug("push to queue {}", request.getUrl());
             pushWhenNoDuplicate(request, task);
         }
diff --git a/webmagic-core/src/test/java/us/codecraft/webmagic/scheduler/DuplicateRemovedSchedulerTest.java b/webmagic-core/src/test/java/us/codecraft/webmagic/scheduler/DuplicateRemovedSchedulerTest.java
new file mode 100644
index 0000000..da69129
--- /dev/null
+++ b/webmagic-core/src/test/java/us/codecraft/webmagic/scheduler/DuplicateRemovedSchedulerTest.java
@@ -0,0 +1,39 @@
+package us.codecraft.webmagic.scheduler;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mockito;
+import org.mockito.runners.MockitoJUnitRunner;
+import us.codecraft.webmagic.Request;
+import us.codecraft.webmagic.Task;
+import us.codecraft.webmagic.scheduler.component.DuplicateRemover;
+import us.codecraft.webmagic.utils.HttpConstant;
+
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+/**
+ * @author code4crafter@gmail.com
+ *         Date: 17/3/11
+ *         Time: 上午11:26
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class DuplicateRemovedSchedulerTest {
+
+    @Test
+    public void test_no_duplicate_removed_for_post_request() throws Exception {
+        DuplicateRemovedScheduler duplicateRemovedScheduler = new DuplicateRemovedScheduler() {
+            @Override
+            public Request poll(Task task) {
+                return null;
+            }
+        };
+        DuplicateRemover duplicateRemover = Mockito.mock(DuplicateRemover.class);
+        duplicateRemovedScheduler.setDuplicateRemover(duplicateRemover);
+        Request request = new Request("https://www.google.com/");
+        request.setMethod(HttpConstant.Method.POST);
+        duplicateRemovedScheduler.push(request, null);
+        verify(duplicateRemover,times(0)).isDuplicate(any(Request.class),any(Task.class));
+    }
+}
diff --git a/webmagic-samples/src/test/java/us/codecraft/webmagic/samples/scheduler/DuplicateRemovedSchedulerTest.java b/webmagic-samples/src/test/java/us/codecraft/webmagic/samples/scheduler/DuplicateRemovedSchedulerTest.java
deleted file mode 100644
index 6f7a5d1..0000000
--- a/webmagic-samples/src/test/java/us/codecraft/webmagic/samples/scheduler/DuplicateRemovedSchedulerTest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package us.codecraft.webmagic.samples.scheduler;
-
-import org.junit.Test;
-
-/**
- * @author code4crafter@gmail.com
- *         Date: 17/3/11
- *         Time: 上午11:26
- */
-public class DuplicateRemovedSchedulerTest {
-
-    @Test
-    public void testDuplicateRemoved() throws Exception {
-        
-
-    }
-}