diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/Fetcher.java b/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/ExtractBy.java
similarity index 93%
rename from webmagic-core/src/main/java/us/codecraft/webmagic/annotation/Fetcher.java
rename to webmagic-core/src/main/java/us/codecraft/webmagic/annotation/ExtractBy.java
index 86f78db..7c749b3 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/Fetcher.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/ExtractBy.java
@@ -11,7 +11,7 @@ import java.lang.annotation.Target;
  */
 @Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
 @Target({ElementType.FIELD})
-public @interface Fetcher {
+public @interface ExtractBy {
 
     String value();
 
diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/FieldFetcher.java b/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/FieldExtractor.java
similarity index 86%
rename from webmagic-core/src/main/java/us/codecraft/webmagic/annotation/FieldFetcher.java
rename to webmagic-core/src/main/java/us/codecraft/webmagic/annotation/FieldExtractor.java
index ee9962b..243ae9f 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/FieldFetcher.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/FieldExtractor.java
@@ -9,13 +9,13 @@ import java.lang.reflect.Field;
  * @date: 13-8-1 <br>
  * Time: 下午9:48 <br>
  */
-class FieldFetcher {
+class FieldExtractor {
 
     private final Field field;
 
     private final Selector selector;
 
-    FieldFetcher(Field field, Selector selector) {
+    FieldExtractor(Field field, Selector selector) {
         this.field = field;
         this.selector = selector;
     }
diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/ObjectPageProcessor.java b/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/ObjectPageProcessor.java
index 98c969e..4b54963 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/ObjectPageProcessor.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/ObjectPageProcessor.java
@@ -18,36 +18,36 @@ import java.util.regex.Pattern;
  */
 public class ObjectPageProcessor implements PageProcessor {
 
-    private List<PageModelFetcher> pageModelFetcherList;
+    private List<PageModelExtractor> pageModelExtractorList;
 
     private Site site;
 
     private Set<Pattern> targetUrlPatterns;
 
     public static ObjectPageProcessor create(Site site, Class... clazzs) {
-        List<PageModelFetcher> pageModelFetcherList = new ArrayList<PageModelFetcher>();
+        List<PageModelExtractor> pageModelExtractorList = new ArrayList<PageModelExtractor>();
         for (Class clazz : clazzs) {
-            PageModelFetcher pageModelFetcher = PageModelFetcher.create(clazz);
-            pageModelFetcherList.add(pageModelFetcher);
+            PageModelExtractor pageModelExtractor = PageModelExtractor.create(clazz);
+            pageModelExtractorList.add(pageModelExtractor);
         }
-        ObjectPageProcessor objectPageProcessor = new ObjectPageProcessor(site, pageModelFetcherList);
+        ObjectPageProcessor objectPageProcessor = new ObjectPageProcessor(site, pageModelExtractorList);
         return objectPageProcessor;
     }
 
-    private ObjectPageProcessor(Site site, List<PageModelFetcher> pageModelFetcherList) {
+    private ObjectPageProcessor(Site site, List<PageModelExtractor> pageModelExtractorList) {
         this.site = site;
-        this.pageModelFetcherList = pageModelFetcherList;
+        this.pageModelExtractorList = pageModelExtractorList;
         targetUrlPatterns = new HashSet<Pattern>();
-        for (PageModelFetcher pageModelFetcher : pageModelFetcherList) {
-            targetUrlPatterns.addAll(pageModelFetcher.getTargetUrlPatterns());
+        for (PageModelExtractor pageModelExtractor : pageModelExtractorList) {
+            targetUrlPatterns.addAll(pageModelExtractor.getTargetUrlPatterns());
         }
     }
 
     @Override
     public void process(Page page) {
-        for (PageModelFetcher pageModelFetcher : pageModelFetcherList) {
-            Object process = pageModelFetcher.process(page);
-            page.putField(pageModelFetcher.getClazz().getCanonicalName(), process);
+        for (PageModelExtractor pageModelExtractor : pageModelExtractorList) {
+            Object process = pageModelExtractor.process(page);
+            page.putField(pageModelExtractor.getClazz().getCanonicalName(), process);
         }
         for (String link : page.getHtml().links().all()) {
             for (Pattern targetUrlPattern : targetUrlPatterns) {
diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/PageModelFetcher.java b/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/PageModelExtractor.java
similarity index 77%
rename from webmagic-core/src/main/java/us/codecraft/webmagic/annotation/PageModelFetcher.java
rename to webmagic-core/src/main/java/us/codecraft/webmagic/annotation/PageModelExtractor.java
index 097f1af..671dd56 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/PageModelFetcher.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/annotation/PageModelExtractor.java
@@ -17,30 +17,30 @@ import java.util.regex.Pattern;
  * @date: 13-8-1 <br>
  * Time: 下午9:33 <br>
  */
-class PageModelFetcher {
+class PageModelExtractor {
 
     private List<Pattern> targetUrlPatterns;
 
     private Class clazz;
 
-    private List<FieldFetcher> fieldFetchers;
+    private List<FieldExtractor> fieldExtractors;
 
-    public static PageModelFetcher create(Class clazz) {
-        PageModelFetcher pageModelFetcher = new PageModelFetcher();
-        pageModelFetcher.init(clazz);
-        return pageModelFetcher;
+    public static PageModelExtractor create(Class clazz) {
+        PageModelExtractor pageModelExtractor = new PageModelExtractor();
+        pageModelExtractor.init(clazz);
+        return pageModelExtractor;
     }
 
     private void init(Class clazz) {
         this.clazz = clazz;
         initTargetUrlPatterns();
-        fieldFetchers = new ArrayList<FieldFetcher>();
+        fieldExtractors = new ArrayList<FieldExtractor>();
         for (Field field : clazz.getDeclaredFields()) {
             field.setAccessible(true);
-            Fetcher fetcher = field.getAnnotation(Fetcher.class);
-            String value = fetcher.value();
+            ExtractBy extractBy = field.getAnnotation(ExtractBy.class);
+            String value = extractBy.value();
             Selector selector;
-            switch (fetcher.type()) {
+            switch (extractBy.type()) {
                 case Css:
                     selector = new CssSelector(value);
                     break;
@@ -53,7 +53,7 @@ class PageModelFetcher {
                 default:
                     selector = new XpathSelector(value);
             }
-            fieldFetchers.add(new FieldFetcher(field, selector));
+            fieldExtractors.add(new FieldExtractor(field, selector));
         }
     }
 
@@ -83,8 +83,8 @@ class PageModelFetcher {
         Object o = null;
         try {
             o = clazz.newInstance();
-            for (FieldFetcher fieldFetcher : fieldFetchers) {
-                fieldFetcher.getField().set(o, fieldFetcher.getSelector().select(page.getHtml().toString()));
+            for (FieldExtractor fieldExtractor : fieldExtractors) {
+                fieldExtractor.getField().set(o, fieldExtractor.getSelector().select(page.getHtml().toString()));
             }
         } catch (InstantiationException e) {
             e.printStackTrace();
diff --git a/webmagic-core/src/test/java/us/codecraft/webmagic/annotation/Blog.java b/webmagic-core/src/test/java/us/codecraft/webmagic/annotation/Blog.java
index 391ce10..7139694 100644
--- a/webmagic-core/src/test/java/us/codecraft/webmagic/annotation/Blog.java
+++ b/webmagic-core/src/test/java/us/codecraft/webmagic/annotation/Blog.java
@@ -8,10 +8,10 @@ package us.codecraft.webmagic.annotation;
 @TargetUrl("http://my.oschina.net/flashsword/blog/*")
 public class Blog {
 
-    @Fetcher("//title")
+    @ExtractBy("//title")
     private String title;
 
-    @Fetcher(value = "div.BlogContent",type = Fetcher.Type.Css)
+    @ExtractBy(value = "div.BlogContent",type = ExtractBy.Type.Css)
     private String content;
 
     @Override