Function is prevention, through early warning analysis, SMEs can be systematic and detailed record of financial risk occurs because the deal through, the measures to defuse the crisis, and the feedback received suggestions for improvement, as for reference to future similar situations. In this way, SMEs will be able to correct the error and negligence of some of the experiences, lessons learned into standard enterprise management activities, to avoid the same or similar mistakes from happening again, and constantly enhance the SME's own immunity.