Based on the joint physics-Mayr arc model, this paper aims to propose a simple and efficient evaluation method for asymmetric interrupting of circuit breakers. The structure of Mayr black box arc model is simple, but its arc parameters can only be determined by circuit breaker breaking test. The simplified enthalpy flow physical model can qualitatively simulate the changing trend of circuit breaker breaking parameters, but the error of the result is large, so it can not accurately simulate the actual circuit breaker breaking process. Therefore, this paper establishes the mapping relationship between the arc physical model and the Mayr black box model by analyzing the changes of electrical parameters during the arc breaking process of asymmetric short circuit current in the simplified enthalpy flow physical model of high voltage circuit breaker, combined with the change law of the arc parameters in Mayr black box arc model. Through the improvement and optimization of arc model, the correctness of the model is verified. This study provides a new theory and method support for the comprehensive evaluation of the interrupting performance of circuit breakers, and is of great significance for the stable operation of power systems.