City coordinate position grid and matched mark component

The invention relates to a method for dividing urban coordinated positioning grid and a navigation mark component arranged. The coordinated positioning grid has a positioning grid number consisting of district number and track number obtained by selecting the division region of a urban map, determining the reference point for dividing grids and dividing along the east-west and south-north direction of a city. The positioning grid number is associated with the height of the urban geographical position, and the grid number having direction mark can be labeled on urban components such as doorplate, traffic sign, sideway, street, road surface, lamp post, bus station board, telephone booth, manhole cover, and postal code plate to form a urban position grid group with accurate positioning, fast response and self-service navigation, thereby to automatically form the urban GPS environment. The invention can provide a valued support platform with accurate positioning, fast response and self-service navigation functions for city operation, doorplate regimentation, alarm and rescue, fire control, medical assistance, postal service and self-service tourism.