According to the data of 41,888 telemarketing time deposits of foreign banks, 17 variables related to bank customers, products and socio-economic attributes were used for model construction, and three models, CART, AdaBoost and SVM, were established using decision trees, Boosting and other methods. aspects are studied. By comparing the kappa values, sensitivity-specific curves, and ROC curves of each model, the Ada boost algorithm is found to be optimal, and suggestions are given to banks to improve their marketing success rate.