Abstract
No bankruptcy of an enterprise usually not occurs unexpectedly, but it does as a result of the aggravation in financial ratio. This study grips the change of financial ratio in time seris, analyzes the process of brankruptcy, classifies the samples by their similartiy of the process, and explains the characteristics of bankruptcy. More sepcifically, we made the selection of financial ratios peculir to bankruptcy, and put them into two variables. In this way, we can show the position of enterprises in a graphic form, and clarify the change with the passage of time. In addition, we classified the bankrupt enterprises by their similarity of their positions in each year so that we can also show the position-change of the non bankrupt enterprise in a graphic form.