The invention relates to an area space multi-dimension grid encoding method and device. The method comprises the steps of encoding grids in all
layers of a grid space; setting the largest number of the
layers of the grid space and unit grids and determining an area grid space and grid codes in all
layers of the area grid space; adopting an eight division method to obtain a model of the grid space,starting from the smallest grid unit, through aggregation of the different layers, a larger grid unit is formed, namely the area grid space, further, aiming at the east-west direction, the south-north direction and the vertical direction, a binary
system method is applied for encoding, through sequence combination in combination with an identification code, a complement code and the like, a complete code is formed, the characteristics can be guaranteed that in the aggregation process, the sizes of the grids in all the layers are the same, layering can be flexible in the vertical direction, binary
system characteristics of a computer are conformed to, the multiple dimensions on multiple meanings are achieved, and therefore the method and device can be conveniently applicable to various occasions when space position management and services are needed.