Three-dimensional warehouse positioning point cleaning method and three-dimensional warehouse

The invention relates to the technical field of three-dimensional warehouses, in particular to a three-dimensional warehouse positioning point cleaning method which comprises the following steps: if a four-direction vehicle does not acquire position information when parking near a positioning identifier, judging whether the positioning identifier is overshoot or lost, and when the positioning identifier is lost, entering a preprocessing stage; the four-way vehicle sends a signal for positioning a loss fault and requesting for forbidding to the warehouse control system, the warehouse control system obtains the previous position information of the four-way vehicle, and a related area is forbidden; when the four-way vehicle runs to the nearest positioning mark, the value of the encoder is set to be zero, the encoder is used for calling back the distance of one goods lattice so as to determine the position of the lost positioning mark, and the four-way vehicle is cleaned through a cleaning module of the four-way