Method and Apparatus for Automatically Marking U-Turn Lane Line, Computer-Readable Storage Medium, and Map

A method for automatically marking a U-turn lane line includes: obtaining information about an intersection entry point, information about an intersection exit point, and information about an obstacle at a to-be-marked intersection; and marking a U-turn lane line with a first depth. The first depth is determined based on a second depth of the obstacle. The first depth of the U-turn lane line is determined based on the second depth of the obstacle, so that a marked U-turn lane line does not collide with the obstacle, to mark a more proper U-turn lane line.