Objectives To explore the characteristics of intertemporal choice in patients with generalized anxiety disorder（ GAD）. Methods A total of 49 patients with GAD， 67 patients with depressive disorder（ D） and 71 healthy controls（ HC） were selected. Using the intertemporal choice paradigm， the discount rate K and the area under the curve（ AUC） were used to represent the decision-making tendency of individual intertemporal choice. A mixed experiment design using Group × Amount Size × Delay Time. Results （1） There was no significant difference in the AUC values across the three groups in the intertemporal choice.（ 2） The analysis of AUC values of different amount sizes showed that there was no statistically significant difference in the amount size in the GAD group and the D group. As opposed to the Absolute Quantity Principle， the difference of the amount size in the HC group was statistically significant.（ 3） The analysis of different delay time points showed that the difference of AUC value in some short time points in the GAD group was statistically significant in the ￥50 task. The discounting trend of the D group HC group were different from that of the GAD group. In the ￥500 task， the difference of AUC value was statistically significant at different time points in the GAD group. The difference of AUC value was statistically significant at some time points in the HC group. The difference was not statistically significant in the D group. Conclusions Patients with GAD have different discounting trends than those with depression and healthy controls and have more sensitive time perception.