Vehicle steering performance test system

The utility model discloses a vehicle steering performance test system, which comprises an automatic steering operation assembly, a steering gear output force monitoring assembly and a control terminal, and is characterized in that the automatic steering operation assembly comprises a fixing device, a driving motor and a chuck, and the chuck comprises a central disc body and a plurality of clamping jaws arranged at the periphery of the central disc body; the driving motor is fixed to the fixing device, the center disc body is connected with an output shaft of the driving motor, the clamping jaw is fixed to a steering wheel, the driving motor drives the chuck to rotate and drives the steering wheel to rotate, and the steering gear output force monitoring assembly is connected with the steering gear and used for monitoring the output force of the steering gear. The steering gear output force monitoring assembly is connected with the control terminal and sends monitoring data to the control terminal in real time