diff --git a/pic/put_fields.png b/pic/put_fields.png
new file mode 100644
index 0000000..c4df33c
Binary files /dev/null and b/pic/put_fields.png differ
diff --git a/report.md b/report.md
index 2a69641..bf66feb 100644
--- a/report.md
+++ b/report.md
@@ -299,10 +299,13 @@ struct executor_param {
 `value_log 中：|value 长度 | slot_num | attr个数(定长) | attr1_name的长度(定长) | attr1_name(变长) | attr1_value的长度(定长) | attr1_value(变长) | ... |`
 
 
-**读操作：**
+**写操作：**
 
 `Status DBImpl::Put_Fields(const WriteOptions& opt, const Slice& key, const FieldArray& fields)`
 
+**流程图：**
+
+![put_fields](./pic/put_fields.png)
 **功能：**
 
 将传入的字段数组插入数据库中