The invention relates to a mould hydraulic testing machine. The testing machine comprises a fuel tank, a hydraulic pump, motor connected to a pump shaft, a proportional valve used for controlling hydraulic oil pressure and a flow, a valve plate, a plurality of solenoid valves, a cooler used for cooling hydraulic oil, a main controller and an electric cabinet, wherein the plurality of solenoid valves are installed on the valve plate and are used for controlling circulation or cut-off of a hydraulic channel; and the main controller is used for controlling motion of the proportional valve, the motor and the solenoid valves. The fuel tank is connected to the hydraulic pump via a pipeline. The hydraulic pump is connected to the proportional valve via the pipeline. The proportioning valve is connected to the valve plate via the pipeline. The valve plate is connected to an oil cylinder of a detected mould via the pipeline. The valve plate is connected to the cooler via the pipeline. The cooler is connected to the fuel tank via the pipeline so as to form hydraulic detection and a cooling loop. The motor, the proportional valve and the plurality of solenoid valves are connected to the main controller through the electric cabinet.