In recent years, with the rapid development of China's shipbuilding industry and the deepening of contacts with foreign countries, more and more optimistic about the financial institution great ship financing of this attractive market, many banks have started to develop ship financing business in which, guarantee the repayment of its ship export business cycle is relatively long, involving large amounts of relatively high rates of return than the risk and won the favor of many financial institutions, although a growing number of banks began to use the repayment of the bank guarantee credit instruments, but due to lack of knowledge of their risk awareness, the commercial banks to carry out this business in the process of implementation was not very smooth, it is necessary to clarify the legal guarantee repayment of the relative risk and its prevention methods, for our big stronger guarantee the repayment of the business to provide high-quality a little help.