The Bank of Korea will launch a blockchain-based authentication service next month, which aims to prevent counterfeiting and corruption through agreements between participants and distributed storage. However, some people pointed out that bank certification services are not much different from existing financial certifications. The application of regional chain technology in the financial sector should be extended beyond the simple security certification department, especially for trade finance and overseas remittances. The Bank of Korea’s application of blockchain technology in finance and related fields is still in its infancy. Some banks in South Korea have recently completed technical testing of overseas remittances, but there is no specific technological commercialization plan.