The invention discloses a stereo garage safety detection method, and belongs to the technical field of stereo garages. When a vehicle runs to a cache region, a vehicle detector determines that the vehicle is a vehicle, a height detection module sends a height detection signal of the vehicle to a controller of a stereo garage, and the controller judges whether the vehicle is too high or not; if thevehicle is not too high, the controller provides a parking space for an entrance and exit of the stereo garage, and a garage door is opened; when the vehicle enters the garage, whether the vehicle isin place or not is detected; if the vehicle is in place, whether the vehicle is too long and too wide or not is detected; if the vehicle is not too long and too wide, the controller judges whether adriver leaves the garage or not; if the driver leaves the garage, the controller authorizes the operation right of a garage operator, and vehicle storage is allowed; and in the closing process of thegarage door, if a door anti-pinch detection module has no signal, the garage door is closed to be completely closed. According to the method, the vehicle is subjected to ultrahigh detection outside the stereo garage, whether the driver leaves the garage or not is determined, and the operation of the stereo garage and the safety of the driver are effectively guaranteed.