Method for improving two-dimensional region positioning accuracy, and terminal

The invention discloses a method for improving two-dimensional region positioning accuracy, and a terminal. The method comprises the following steps: acquiring other groups adjacent to a first GEOHASHgroup; obtaining lower-level cells adjacent to the first GEOHASH group in other adjacent groups, and taking all the lower-level cells adjacent to the first GEOHASH group as the lower-level cells of the first GEOHASH group. by searching the positioning information in the edge range, edge omission is avoided, large-area positioning and small-area positioning are automatically grouped and corrected,and the accuracy and rationality of two-dimensional map area positioning hierarchical display are improved. GEOHASH grouping is adopted, so that the defects that a positioning area is not flexible enough to manually define and the size of the positioning area cannot be automatically determined are overcome. Meanwhile, the positioning information amount can be continuously reduced along with refinement of GEOHASH grouping,