In the application of new energy vehicles, the hydraulic power system includes a hydraulic power execution device and a hydraulic power control device. The hydraulic power execution device includes an electric motor, a hydraulic gear pump, and a first hydraulic oil cylinder. The electric motor drives the hydraulic gear pump and causes the first hydraulic oil cylinder to perform work. The hydraulic power control device includes a hydraulic pressure switch that detects the oil pressure in the hydraulic power execution device and turns off the power of the motor when it reaches a predetermined threshold. The utility model drives a hydraulic gear pump through an electric motor, and then causes a hydraulic oil cylinder to perform work, thereby realizing the use of a power battery as a power source of a hydraulic power system, and further realizing the application of the hydraulic power system in a new energy vehicle. In addition, when the hydraulic power execution device is executed to a certain position, the electric motor is stopped to work, thereby improving energy utilization efficiency.
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