To give a simple and accurate explicit model for the output characteristic curve of cadmium telluride ( CdTe) photovoltaic modules, the idea of using two second-order Bezier function trajectories to fit the left and right side curves of the maximum power point of the module output characteristics is proposed. The influence rule of the control point on the Bezier function is analyzed, and the existence of the optimal control point is defined. Then, the optimal output characteristics of seven CdTe modules from different manufacturers and types are given. According to the Bezier modeling results under the control points, the fitting law between the optimal control point position of Bezier function and the module filling factor is found out by using the similar triangle theory, and an explicit model describing the output characteristics of CdTe photovoltaic modules is established. Finally, four new CdTe modules are used to evaluate the proposed rules, and the iterative results are compared with the existing models. Experimental results show that the average relative error of CdTe module modeling method based on Bezier function is between 0. 49% and 1. 5% , while the average relative error of existing models is between 2. 45% and 9. 19% , which demonstrates the simplicity and correctness of the proposed model.