The invention relates to an anti-theft device, in particular to an anti-theft device for a parking lot exit. The technical problem to be solved by the invention is to provide the anti-theft device for the parking lot exit, vehicles can come in and out smoothly, the damping and cushioning effects are good, vehicles can slow down during coming in and out, and an anti-theft effect can be achieved. In order to solve the technical problem, the anti-theft device for the parking lot exit provided by the invention comprises a base and the like; a cavity is arranged under the ground at the position of the parking lot exit, the base is arranged at the bottom inside the cavity, a lifting device is arranged at the top of the base, a fixed plate is arranged at the top of the lifting device, the fixed plate is flush with the ground and is in seamless contact with the ground, fixed devices are symmetrically arranged on the left side and the right side outside the cavity, and the fixed devices are positioned under the ground. The anti-theft device has the effects that the vehicles can come in and out smoothly, the damping and cushioning effects are good, the vehicles can slow down during coming in and out and the anti-theft effect can be achieved.