The invention relates to a parking control method and a parking control system. The parking control method comprises the steps that during parking, if an accelerator pedal is effective, and when driving torque provided by the accelerator pedal is less than parking torque which is provided for preventing car sliding during parking, a car continues to provide parking torque; if the driving torque is greater than the parking torque, parking is disengaged. The parking control system comprises the accelerator pedal, a whole car controller, a motor controller and a motor. The whole car controller is connected with the accelerator pedal in a sampling mode. The whole car controller is connected with the motor controller. The motor controller controls the motor and is connected with the motor. The motor is used for being connected with wheels through a main reducer. According to the parking control method and the parking control system, the possibility that the car slides downhill when the torque provided by the accelerator pedal is not great enough is avoided, and therefore the dangers of car rear-end collision or hitting pedestrians are effectively prevented.