Credit island service platform and corporate finance service system based on the same

The invention provides a credit island service platform. Individuals related to the credit investigation are integrated into one environment through establishing a virtual acquaintance social community on Internet, and information can be shared between the individuals through various software tools for improving the familiar degree and solving the information symmetry problem, so each individual can be placed under the supervision of various external subjects, and the invention aims to establish a credit environment for implementing the credit reward and discredit reprimand mechanism. The invention has the advantage that the problem of credit lack is fundamentally solved. On the basis of the advantage, the invention also provides a corporate finance service system based on the credit island service platform, which can also solve the problem of corporate credit lack for financial institutions.