Abstract: In this paper, on the test verification to the dual-way automatic regulation variable spray control system designed by our team, and put forward the concrete test principle and test method. through many tests and detailed record data, the test results are obtained and analyzed. This test is mainly divided into 1 flow shunt control test, the spray main pipeline is divided into A and B channels respectively, and the control effect of the system is verified by setting different target spraying quantity;2 the speed affects the flow rate test, keeps the target spraying quantity unchanged, and uses the pulse generator to set different speed to carry on the test, verifies the influence rule of the speed change on the system flow rate;3 the pressure stability control make test, set different target pressure value for control test, verify the control effect of the system on pressure stability. The results show that the average control precision of the flow control system is 97%, the average control precision of the pressure stabilization system is 97.88%, the average deviation of the pulse generator simulation speed is 0.05, the system is running normally, and the control precision of the flow rate of the two branches is improved by the traditional spraying method.range, can achieve more accurate variable application.