The listed companies in Taiwan suddenly announced restructuring, bankruptcy or out of stock, and their investors lost a lot. Therefore, we must set up the enterprise credit model to detect and examine their management states. We discover that the financial ratios decrease gradually since the past five years of enterprise's crisis. Besides, financial ratios still diminish after the crisis take place. Therefore, this research regards enterprise's crisis as one parameter, and we transform the parameter by fuzzy numbers. In addition, we use the macro economical parameters to find out a more high significant model The result shows it is high significant to adopt the fuzzy number dependent variable.