Map processing method and device

The invention provides a map processing method and device, and relates to an automatic driving technology in the field of data processing. According to the specific implementation scheme, the method comprises the steps of: determining a to-be-processed road in a map, wherein the road is provided with a first edge line and a second edge line, M mark points are arranged on the first edge line, and N mark points are arranged on the second edge line; according to the first length of the first edge line, the second length of the second edge line and a preset point density, performing interpolation processing on the M mark points on the first edge line to obtain a first point set of T first sample points on the first edge line, and performing interpolation processing on the N mark points on the second edge line to obtain a second point set of T second sample points on the second edge line; determining a corresponding relation between the points in the first point set and points in the second point set; determining