Due to the cash card has advantages of high spreads, high efficiency and high returns, cash card has already become the important product which generating profits for banks. To anticipate and reduce defaults and serious delinquencies, bank is to uncover the patterns that characterize deliberate deception. The objective of this research is to predict and uncover probability of the cash card default by using Decision Tree and Logistic Regression technique. In this research, there are 27,323 cases of cash card's customer which come from bank A.