Method and device for establishing radio map

The invention relates to a method and a device for establishing a radio map. The method comprises: extracting sampling points reported by all terminals from an existing network signaling platform, wherein each sampling point comprises geographical position information of the reporting positions of the terminals and signal intensity information of surrounding cells; obtaining a base station work parameter table corresponding to the geographical position information from an existing network; for sampling points, determining cell identifiers of at least two cells in the surrounding cells according to the base station work parameter table, wherein one of the at least two cells is a main cell for providing communication service for the terminal, and the other cells are adjacent cells of the main cell; establishing a corresponding relationship between geographical location information and cell identification and signal intensity of each cell in the at least two cells, and obtaining a location fingerprint correspond