diff --git a/README.md b/README.md
index 3e051b1a0..9d6c80cb7 100644
--- a/README.md
+++ b/README.md
@@ -130,7 +130,7 @@ DAPP架构请参考文章--[从架构维度看Web2.0与Web3.0应用之别](https
 23. [ERC865 & ERC875](basic/23-erc865-and-erc875/README.md) ✅
 24. [Upgradeable-contract](basic/24-upgradeable-contract/README.md) ✅
 25. [multi-sig-wallet](basic/25-multi-sig-wallet/readme.md) ✅
-26. [Quadratic vote](basic/26-quadratic-vote/README.md) ✅
+26. [Quadratic vote & Gitcoin](basic/26-quadratic-vote/README.md) ✅
 27. [Arbitrum layer2](basic/27-Arbitrum-layer2/README.md) ✅
 28. [Optimism layer2](basic/28-Optimism-layer2/readme.md) ⬜
 29. [Polygon(matic) layer2](basic/29-Polygon(matic)-layer2/readme.md) ✅
diff --git a/basic/26-quadratic-vote/.env.example b/basic/26-quadratic-vote&gitcoin/.env.example
similarity index 100%
rename from basic/26-quadratic-vote/.env.example
rename to basic/26-quadratic-vote&gitcoin/.env.example
diff --git a/basic/26-quadratic-vote/.gitignore b/basic/26-quadratic-vote&gitcoin/.gitignore
similarity index 100%
rename from basic/26-quadratic-vote/.gitignore
rename to basic/26-quadratic-vote&gitcoin/.gitignore
diff --git a/basic/26-quadratic-vote/README.md b/basic/26-quadratic-vote&gitcoin/README.md
similarity index 99%
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index 47d80c1c5..f5ea13e56 100644
--- a/basic/26-quadratic-vote/README.md
+++ b/basic/26-quadratic-vote&gitcoin/README.md
@@ -1,3 +1,4 @@
+
 ## 概念介绍  
 在公共领域的治理中，需要投票决定资金的使用，进而决定哪些项目获得优先的资助。例如，一个城市在修公园、修医院、修路等项目中分配预算，或一个由社区和机构共同资助的公链生态基金在钱包、开发者工具、文档编辑、黑客马拉松、社区播客、隐私协议等项目中分配预算。  
 投票通常有两种方式：“一人一票”和“一块钱一票”。 
diff --git a/basic/26-quadratic-vote/contracts/FinancingTool.sol b/basic/26-quadratic-vote&gitcoin/contracts/FinancingTool.sol
similarity index 100%
rename from basic/26-quadratic-vote/contracts/FinancingTool.sol
rename to basic/26-quadratic-vote&gitcoin/contracts/FinancingTool.sol
diff --git a/basic/26-quadratic-vote/contracts/SimpleToken.sol b/basic/26-quadratic-vote&gitcoin/contracts/SimpleToken.sol
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rename from basic/26-quadratic-vote/contracts/SimpleToken.sol
rename to basic/26-quadratic-vote&gitcoin/contracts/SimpleToken.sol
diff --git a/basic/26-quadratic-vote/contracts/voteTool.sol b/basic/26-quadratic-vote&gitcoin/contracts/voteTool.sol
similarity index 100%
rename from basic/26-quadratic-vote/contracts/voteTool.sol
rename to basic/26-quadratic-vote&gitcoin/contracts/voteTool.sol
diff --git a/basic/26-quadratic-vote&gitcoin/gitcoin.md b/basic/26-quadratic-vote&gitcoin/gitcoin.md
new file mode 100644
index 000000000..cabd95f19
--- /dev/null
+++ b/basic/26-quadratic-vote&gitcoin/gitcoin.md
@@ -0,0 +1,10 @@
+# Gitcoin
+## 概念介绍  
+
+
+## 参考资料
+
+- [二次方投票和二次方资助](https://www.matataki.io/p/6113)  
+- [视频](https://www.bilibili.com/video/BV1Y5411w77b/)
+- [gitcoin](https://gitcoin.co/blog/gitcoin-grants-quadratic-funding-for-the-world/)
+- [gitcoin dao](https://gitcoin.notion.site/gitcoin/GitcoinDAO-22431fe7c9794d99986a028c23ce56b5)
\ No newline at end of file
diff --git a/basic/26-quadratic-vote/hardhat.config.js b/basic/26-quadratic-vote&gitcoin/hardhat.config.js
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rename from basic/26-quadratic-vote/hardhat.config.js
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diff --git a/basic/26-quadratic-vote/package.json b/basic/26-quadratic-vote&gitcoin/package.json
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diff --git a/basic/26-quadratic-vote/test/test_FinancingTool.js b/basic/26-quadratic-vote&gitcoin/test/test_FinancingTool.js
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diff --git a/basic/26-quadratic-vote/test/test_VoteTool.js b/basic/26-quadratic-vote&gitcoin/test/test_VoteTool.js
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