Grid map coding method and device and electronic equipment

The invention relates to the technical field of map coding, and discloses a grid map coding method, a raster map coding device and electronic equipment. The grid map coding method comprises the steps:acquiring a grid map, wheren the grid map comprises a plurality of grids, and the grid value of each grid can represent the corresponding grid state; according to a preset coding mode, sequentially combining the at least two adjacent grid values to obtain a plurality of combined codes; and according to a preset mapping relationship, mapping each combined code into a corresponding coded characterin sequence to obtain a coded file. Therefore, each coded character can express the grid states of a plurality of grids at the same time under the condition of consuming less storage capacity, the original information of the grid map is not lost, and less storage capacity is occupied, so that the file size of the grid map is reduced, and only less bandwidth and network flow are needed to transmitthe grid map, and thus, the