The invention discloses a vehicle carrying board structure for a multilayer lift-sliding parking device. The vehicle carrying board structure comprises a bottom plate, mounting grooves are formed in the bottom plate, rotating rods are arranged in the mounting grooves, fixed blocks are arranged at the tops of the rotating rods, electric telescopic rods are arranged at the tops of the fixed blocks,bearing plates are arranged at the tops of the electric telescopic rods, elastic layers are arranged at the tops of the bearing plates, pressure sensors are arranged in the elastic layers, a first guardrail is arranged at the top of the bottom plate, second guardrails are arranged at two ends of the first guardrail, the first guardrail and the second guardrails comprises framework plates, buffering plates are arranged on the side surfaces of the framework plates, scraping prevention plates are arranged on the side surface of the buffering plates, and a control cabinet is arranged at the top ofthe first guardrail. According to the vehicle carrying board structure, a vehicle is fixed by the aid of the electric telescopic rods and the elastic layers, shake of the vehicle is effectively prevented in the lifting process of the bottom plate, parking safety is greatly improved, and accidents are avoided.