The topic related to blockchain technology is one of the hottest topics in the economic field of China and even the whole world. More and more scholars believe that in the future, blockchain technology is expected to become another technology that changes the way of human society and economic development after Internet technology. Digital currency based on blockchain technology has many advantages over traditional currencies at present, such as decentralization, tamper-proof security, information traceability and so on. If it is applied in various fields, it will bring great convenience to the real society. However, this new technology field is not mature, and relevant research on blockchain technology is not perfect. In particular, there are still many problems to be studied in the field of digital currency payment security based on blockchain technology. What are the loopholes in its security? How can it be solved? And other issues in particular need to focus on research, eliminate criminals to exploit loopholes, to ensure the future of the healthy development of digital currency is essential.
This paper outlined the digital currency and block chain technology both the definition, characteristics and advantages and disadvantages, etc., and with block chain technology in the application of digital currency as the key point, this paper using block chain technology advantages and disadvantages of digital currency, and the block chain technology in the application of digital currency a brief induction, from loopholes existing in the technical aspects of digital currency and regulatory loopholes such as cut, and then think about block chain technology in the application prospect of the future development of digital currency areas, and the correct understanding to block the technical chain vulnerability or risk, It also puts forward some Suggestions on issuing legal digital currency using block chain technology in the future, hoping to provide useful help for the research of block chain technology in the future.
Keywords: blockchain technology; The application of blockchain technology; security