Research on the use of blockchain is increasing in various fields, and discussions are also starting in the anti-corruption field due to the impossibility of forgery and alteration of blockchain. The following research questions can be considered regarding anti-corruption policies using blockchain. Can blockchain be used as a new tool to prevent corruption? How is an anti-corruption policy using blockchain different from existing policies, and what are the advantages? What are the conditions necessary to introduce an anti-corruption policy using blockchain? Are there any negative aspects to anti-corruption policies using blockchain? This study sought to provide answers to these research questions. To find answers to the research questions, we selected studies that attempted case analysis targeting Indonesia, South Africa, and China from the existing literature and conducted an in-depth analysis. In addition, we evaluated the usability of anti-corruption policies using blockchain by dividing corruption into corruption involving financial transactions and corruption not involving financial transactions. The possibility of utilizing blockchain was examined by dividing anti-corruption policies into proactive and reactive policies. As a result of this work, the following arguments were presented. First, blockchain can be used as an anti-corruption tool in corruption involving financial transactions, so it is suitable for procurement administration and anti-corruption audits. Second, blockchain technology can be used not only as a proactive anti-corruption tool but also as a reactive anti-corruption tool. Third, blockchain-based anti-corruption policies are expected to reduce costs and have a higher deterrence against corruption compared to existing anti-corruption policies, so they are expected to be highly effective when introduced in developing countries. Fourth, in order for a blockchain-based anti-corruption policy to work properly, it must be introduced throughout the country's financial transaction system, and public officials must have an understanding of blockchain. Lastly, we must be wary of falling into technological omnipotence, knowing that blockchain can only be an anti-corruption policy but not a panacea that can completely eliminate corruption.