Auto anti-lock braking system (ABS) bench test is a safe, high-efficiency and low-cost method for ABS performance detection. The key parameters such as slip ratio, adhesion coefficient utilization rate and deceleration can be obtained quickly. In this paper, a classification model based on neural network for ABS bench test results was established. And the detailed BP network structure design process was presented. BP neural network self-learning ability was used to analyze the bench test data. A large number of model mapping relationships were summarized and stored in the networks. MATLAB simulations show that the BP neural network model can classify the ABS bench test results correctly for a variety of experimental conditions.