Position positioning method, device and electronic map

The embodiment of the invention provides a position positioning method, a position positioning device and an electronic map. Through reference mileage pile numbers and the length of a highway unit, the starting point mileage pile number of the highway unit and the terminal point mileage pile number of the highway unit are worked out, the highway mileage pile number to be positioned is obtained, and the highway mileage pile numbers to be positioned are positioned according to the highway mileage file number to be positioned, the starting point mileage pile number of the highway unit and the terminal point mileage pile number of the highway unit. The combination of the highway mileage pile number and a three-layer highway network model is realized, and convenience is brought to the application of the highway mileage pile number to the position positioning of the electronic map.