diff --git a/api.md b/api.md
index fd92ca2fb..038aa4c69 100644
--- a/api.md
+++ b/api.md
@@ -108,6 +108,8 @@ Body = { rule: [ReplaceRule], text: [String] }
 
 #### 搜索在线书籍
 
+若想获取对应的书籍的目录正文 请先**插入书籍**以启用缓存，如果试读后决定不添加到书籍，请**删除书籍**
+
 ```
 URL = ws://127.0.0.1:1235/searchBook
 Message = { key: [String] }
@@ -123,6 +125,14 @@ URL = http://127.0.0.1:1234/saveBook
 Method = POST
 ```
 
+#### 删除书籍
+
+```
+URL = http://127.0.0.1:1234/deleteBook
+Method = POST
+```
+
+```
 #### 获取所有书籍
 
 ```
diff --git a/app/src/main/java/io/legado/app/api/controller/BookController.kt b/app/src/main/java/io/legado/app/api/controller/BookController.kt
index d726f30db..89dabb7b7 100644
--- a/app/src/main/java/io/legado/app/api/controller/BookController.kt
+++ b/app/src/main/java/io/legado/app/api/controller/BookController.kt
@@ -99,7 +99,7 @@ object BookController {
                 return returnData.setErrorMsg("参数url不能为空，请指定书籍地址")
             }
             val book = appDb.bookDao.getBook(bookUrl)
-                ?: return returnData.setErrorMsg("bookUrl不对")
+                ?: return returnData.setErrorMsg("未在数据库找到对应书籍，请先添加")
             if (book.isLocal) {
                 val toc = LocalBook.getChapterList(book)
                 appDb.bookChapterDao.delByBook(book.bookUrl)
@@ -207,6 +207,18 @@ object BookController {
         return returnData.setErrorMsg("格式不对")
     }
 
+    /**
+     * 删除书籍
+     */
+    fun deleteBook(postData: String?): ReturnData {
+        val returnData = ReturnData()
+        GSON.fromJsonObject<Book>(postData).getOrNull()?.let { book ->
+            book.delete()
+            return returnData.setData("")
+        }
+        return returnData.setErrorMsg("格式不对")
+    }
+
     /**
      * 保存进度
      */
diff --git a/app/src/main/java/io/legado/app/web/HttpServer.kt b/app/src/main/java/io/legado/app/web/HttpServer.kt
index b5f4183c4..4c84ec696 100644
--- a/app/src/main/java/io/legado/app/web/HttpServer.kt
+++ b/app/src/main/java/io/legado/app/web/HttpServer.kt
@@ -43,6 +43,7 @@ class HttpServer(port: Int) : NanoHTTPD(port) {
                         "/saveBookSources" -> BookSourceController.saveSources(postData)
                         "/deleteBookSources" -> BookSourceController.deleteSources(postData)
                         "/saveBook" -> BookController.saveBook(postData)
+                        "/deleteBook" -> BookController.deleteBook(postData)
                         "/saveBookProgress" -> BookController.saveBookProgress(postData)
                         "/addLocalBook" -> BookController.addLocalBook(session.parameters)
                         "/saveReadConfig" -> BookController.saveWebReadConfig(postData)