Vehicle parking braking system and control method for same

The invention discloses a vehicle parking braking system, which comprises a signal acquisition unit for acquiring a vehicle state signal and a signal input unit for inputting a driver operation instruction, wherein the signal acquisition unit and the signal input unit output signals to a control unit; the control unit analyzes and processes the signals, and controls an execution unit to enable a vehicle brake caliper to clamp or release a brake disc. According to the system, required optimal braking force can be provided for parking, and the mechanical abrasion of the brake caliper is effectively reduced; in addition, the system can function in emergency braking after a travel braking system fails, so that a vehicle can be safety parked, and the safety of the vehicle is ensured.