The invention discloses an intelligent anti-theft parking system, which comprises parking lot equipment, a system server, a state setting module, a control module and a road gate machine, wherein the parking lot equipment comprises recognition devices which are arranged at the inlet and the outlet and are used for recognizing vehicle information; the system server comprises a storage module, is arranged to receive and store vehicle information and comprises license plate information, reserved words, vehicle state and entrance and exit information; the state setting module is arranged to modify the vehicle state of the corresponding vehicle in the storage module to be locked or unlocked according to the setting of registered vehicle state from the outside; the control module is arranged to receive vehicle recognition information at the outlet, and to transmit a road gate control signal to a road gate machine at the outlet according to the vehicle state or the reserved word stored in the storage module; and the road gate machine is arranged at the outlet to receive the road gate control signal of the system server and to execute a corresponding road gate operation. Through the system and the method provided by the invention, an owner can rapidly set and release a defense through a reserved word code signal and custom settings, so that the parking safety is ensured; and the user experience is improved.