diff --git a/src/main/java/org/chobit/wp/enums/PostFormat.java b/src/main/java/org/chobit/wp/enums/PostFormat.java
new file mode 100644
index 0000000..c16c53d
--- /dev/null
+++ b/src/main/java/org/chobit/wp/enums/PostFormat.java
@@ -0,0 +1,57 @@
+package org.chobit.wp.enums;
+
+import com.fasterxml.jackson.annotation.JsonValue;
+
+public enum PostFormat {
+    /**
+     * 特征即是没有标题的文章
+     */
+    ASIDE("aside"),
+    /**
+     * 图像相册
+     */
+    GALLERY("gallery"),
+    /**
+     * 指向其他站点的链接
+     */
+    LINK("link"),
+    /**
+     * 一个图片，文章中的第一个<img/>标签
+     */
+    IMAGE("image"),
+    /**
+     * 引文
+     */
+    QUOTE("quote"),
+    /**
+     * 状态
+     */
+    STATUS("status"),
+    /**
+     * 视频
+     */
+    VIDEO("video"),
+    /**
+     * 音频
+     */
+    AUDIO("audio"),
+    /**
+     * 聊天
+     */
+    CHAT("chat"),
+
+    ;
+
+
+    public final String format;
+
+
+    PostFormat(String format) {
+        this.format = format;
+    }
+
+    @JsonValue
+    public String getFormat() {
+        return format;
+    }
+}
diff --git a/src/main/java/org/chobit/wp/enums/PostOrderBy.java b/src/main/java/org/chobit/wp/enums/PostOrderBy.java
index abd30af..cf9a5c7 100644
--- a/src/main/java/org/chobit/wp/enums/PostOrderBy.java
+++ b/src/main/java/org/chobit/wp/enums/PostOrderBy.java
@@ -4,6 +4,10 @@ import com.fasterxml.jackson.annotation.JsonValue;
 
 public enum PostOrderBy {
 
+    /**
+     * 无序
+     */
+    NONE("none"),
     /**
      * 按发布日期排序
      */
@@ -17,7 +21,7 @@ public enum PostOrderBy {
      */
     ID("ID "),
     /**
-     * 按评论最多排序
+     * 按评论数量排序
      */
     COMMENT_COUNT("comment_count "),
     /**
@@ -28,6 +32,27 @@ public enum PostOrderBy {
      * 随机排序
      */
     RAND("rand"),
+    /**
+     * 按post_name（即post slug）排序
+     */
+    NAME("name"),
+    /**
+     * 按post_type排序
+     */
+    TYPE("type"),
+    /**
+     * 按author排序
+     */
+    AUTHOR("author"),
+    /**
+     * 按文章/页面的parent id排序
+     */
+    PARENT("parent"),
+    /**
+     *  适用于搜索文章的情况。按搜索结果的相关性排序。
+     *  首先，是否整句匹配；第二，是否全部搜索内容都在文章标题里面；第三：是否部分搜索内容在文章标题里面；第四：是否整句都出现在文章内容里面
+     */
+    RELEVANCE("relevance"),
 
     ;
 
diff --git a/src/main/java/org/chobit/wp/enums/PostType.java b/src/main/java/org/chobit/wp/enums/PostType.java
new file mode 100644
index 0000000..5942ae3
--- /dev/null
+++ b/src/main/java/org/chobit/wp/enums/PostType.java
@@ -0,0 +1,42 @@
+package org.chobit.wp.enums;
+
+import com.fasterxml.jackson.annotation.JsonValue;
+
+public enum PostType {
+
+    /**
+     * 文章
+     */
+    POST("post"),
+    /**
+     * 页面
+     */
+    PAGE("page"),
+    /**
+     * 修订版数据
+     */
+    REVISION("revision"),
+    /**
+     * 附件
+     */
+    ATTACHMENT("attachment"),
+    /**
+     * 导航菜单条目
+     */
+    NAV_MENU_ITEM("nav_menu_item"),
+    /**
+     * 除修订版数据以及禁止搜索引擎搜索到的数据之外的全部内容
+     */
+    ANY("any");
+
+    public final String type;
+
+    PostType(String type) {
+        this.type = type;
+    }
+
+    @JsonValue
+    public String getType() {
+        return type;
+    }
+}
diff --git a/src/main/java/org/chobit/wp/model/request/PostRequest.java b/src/main/java/org/chobit/wp/model/request/PostRequest.java
index f3bc6ac..bcc18ff 100644
--- a/src/main/java/org/chobit/wp/model/request/PostRequest.java
+++ b/src/main/java/org/chobit/wp/model/request/PostRequest.java
@@ -4,6 +4,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import org.chobit.wp.enums.CommentStatus;
 import org.chobit.wp.enums.PingStatus;
 import org.chobit.wp.enums.PostStatus;
+import org.chobit.wp.enums.PostType;
 import org.chobit.wp.model.interval.Enclosure;
 
 import java.beans.Transient;
@@ -14,6 +15,7 @@ import java.util.Map;
 
 import static org.chobit.wp.enums.PostTaxonomy.CATEGORY;
 import static org.chobit.wp.enums.PostTaxonomy.TAG;
+import static org.chobit.wp.enums.PostType.POST;
 
 /**
  * @author robin
@@ -24,7 +26,7 @@ public class PostRequest extends Request {
     }
 
     @JsonProperty("post_type")
-    private String postType;
+    private String postType = POST.type;
 
     @JsonProperty("post_status")
     private PostStatus postStatus = PostStatus.PUBLISH;
@@ -83,6 +85,10 @@ public class PostRequest extends Request {
         this.postType = postType;
     }
 
+    public void setPostType(PostType postType) {
+        this.postType = postType.type;
+    }
+
     public PostStatus getPostStatus() {
         return postStatus;
     }