The utility model discloses an automatic water level tracking test system, which comprises a water level induction probe, a controller, a turbine reducer, a metal lead screw, a test frame and a support table. The water level induction probe for acquiring water level change signals is connected with the controller; the controller is connected with the turbine reducer; the controller and the turbine reducer are arranged on the support table; the test frame for mounting test equipment is connected with the turbine reducer through the metal lead screw; and the turbine reducer drives the metal lead screw to rotate according to signals transmitted by the controller, thereby driving the test frame to automatically ascend or descend along with change of water level. The intelligent and simple test system is convenient in operation, high in accuracy and low in cost, and is widely used for observation of tidal water flow hydraulic elements, monitoring of power plant drain outlet temperature and waste liquid discharge, and acquisition of unsteady flow hydraulic elements in a laboratory.