In order to solve the problem of low efficiency in the traditional trigger function test and improve the test quality, the test system based on automatic test strategy is established to avoid cumbersome manual operation, reduce artificial factors in the test and ensure the consistency of test cases. Because the trigger performance is difficult to judge and the reproduction of trigger state is hard, the algorithm is used to process the trigger data and output the chart, which realizes the visualization of trigger performance, rapid retrieval of trigger state and accurate positioning of the trigger problem. This system can effectively improve the efficiency of the trigger function test, which provides a reliable basis for the trigger performance of valve control system.