A valve test system comprises a gas source, a first pressure sensor, an electromagnetic valve, an electric throttle valve, a second pressure sensor, a control device, a data collector, and an industrial personal computer, wherein the gas source, the first pressure sensor, the electromagnetic valve, the electric throttle valve and the second pressure sensor are sequentially connected through a pipeline. The control device is connected to the electromagnetic valve and the electric throttle valve and controls opening of the electromagnetic valve and openness of the electric throttle valve. The data collector is connected to the first and second pressure sensors and collects first pressure feedback value of the first pressure sensor and second pressure feedback value of the second pressure sensor respectively. The industrial personal computer is connected to the control device and the data collector and receives the pressure feedback values from the data collector so as to control action electrical signals emitted by the control device. The valve test system has the advantages that regulating gas pressure buildup rate is achieved, test efficiency is greatly improved, the system can cover more widely for testing, and test condition quantization control capacity of the system is improved.