The application discloses a map division method and device, a computer readable storage medium and a processor. The method comprises: obtaining a predetermined map of a predetermined area, wherein the predetermined map is used to show the building contour of the predetermined area, and the predetermined map comprises a plurality of preset grids, and the grid area of each preset grid is the same; determining the
building density in each preset grid according to the building contour in each preset grid, wherein the
building density is the ratio of the building area in the preset grid to the grid area, and the building area is determined according to the building contour; clustering the plurality of preset grids according to the
building density to obtain a
grid clustering result, wherein the
grid clustering result comprises a plurality of density levels, and each density level comprises at least one preset grid; and dividing the predetermined map according to the
grid clustering result. The application solves the technical problem of low planning efficiency caused by manual planning of the map.