diff --git a/doc/prooftool.md b/doc/prooftool.md
new file mode 100644
index 0000000..e8a1cfc
--- /dev/null
+++ b/doc/prooftool.md
@@ -0,0 +1,71 @@
+# prooftool介绍
+
+proof_tool是一个命令行工具，用于构造符合ERC7585的MixHash和存储证明
+
+## Step0. 编译
+
+首先需要安装Rust工具链.
+
+```shell
+cd ./proof-tool
+cargo build --release
+```
+随后可以在`./target/release`目录下找到编译好的可执行文件`proof_tool`
+
+## Step1. 得到MixHash
+
+```shell
+proof-tool create <FILE> keccak256
+```
+
+该命令会返回文件的mixhash，并在<FILE>目录下产生保持了全部merkle tree的文件<FILE>.merkle.输出如下:
+
+```shell
+calcuting merkle tree...
+create file root hash 0x80000000031e95ed7cbb245c171db93de38f0ca5bc301fdd85537b0fdcdab037
+```
+
+## Step2. 产生证明
+
+当生成了<FILE>.merkle，可以基于一个特定的NONCE Block Hash，构造证明
+
+```shell
+Running `D:\tmp\rust_build\release\proof_tool.exe proof g:\\backups\\duplicati-b2dae68af7c59429d90bad8d4402665fc.dblock.zip.aes 0x23234545`
+```
+
+执行成功能得到调用合约必要的参数，结果如下:
+
+```
+found min index 25722, min root 0x000055b73e351bcb244dab5127f7accaa19fa2f5a7db4b1865b4e72dd512388c
+min path [
+        0x499eede40569bd681abf88af2a983d1f,
+        0x2e434db35ec021b901df4b6b27cbd055,
+        0x4bd1aa3994d426a623e5a6b8714ad0d0,
+        0x3392d19d3d75464cedcb4bbb97374cc5,
+        0x0431adce83bc2ba694c1c5db7e9fe5c4,
+        0x62f50045a813f6fcd5075af10b7d20a0,
+        0xbd2e98f80ef6e654b33b2aa5027a84c3,
+        0x62d03e34f4f6715cfe6f7cdf5e926a76,
+        0x539225a9b00f225a05e6f5324d78ad4e,
+        0xc752be75dbfc102c0bd7b0acb6efc652,
+        0x4e375fa210ed5c973eca7b8566b972f0,
+        0xd6a3d1a16e513d0c2d16459eb24e1fe8,
+        0x2a753be477a7244136442b78f2e595c4,
+        0x7577d4f45527b731a0c63740fb64278f,
+        0xd8734a25d7d31e2cf3843e88e89c089b,
+        0xb4bcb1eca80b2e06eedd510246a1fa32,
+]
+```
+
+调用合约的参数对应如下:
+
+```solidity
+function showData(
+    bytes32 dataMixedHash, //0x80000000031e95ed7cbb245c171db93de38f0ca5bc301fdd85537b0fdcdab037
+    uint256 nonce_block, //which block'hash is 0x23234545
+    uint32 index, //25722
+    bytes16[] calldata m_path, //min path
+    bytes calldata leafdata,
+    ShowType showType
+) 
+```
\ No newline at end of file
diff --git a/proof-tool/Cargo.toml b/proof-tool/Cargo.toml
index d2c9399..2270c6b 100644
--- a/proof-tool/Cargo.toml
+++ b/proof-tool/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "rust"
+name = "proof_tool"
 version = "0.1.0"
 edition = "2021"