Abstract: Blockchain is a new decentralized architecture with the rise of bitcoin and other digital currencies. In blockchain, pseudonyms are used to provide anonymity. However, studies have shown that such anonymity is not safe. Correlation between different pseudonyms can be found through transaction graph analysis, and the pseudonyms of the same user can be found to destroy anonymity. This problem can be solved by mixing addresses. A decentralized hybrid method is proposed, which is proved by analysis to be able to effectively protect users' privacy and realize the mixing of different amounts of users to increase the convenience.