Credit risk early warning is to make early warning decision after quantitative comprehensive evaluation according to a series of pre-set critical points of early warning indicators. The basic function of this subsystem is that the credit management department sends an accurate warning to the management decision-making level and the sales and finance departments of the enterprise according to the warning level of customers, so that the whole enterprise and relevant departments can do their respective duties, take effective measures in time, cut off the risk sources decisively and prevent and control credit risks.