A method and apparatus for determining lane center line are provided. The method may include obtaining a target lane in a first road segment from a database, the first road segment being a road segment having a changed lane quantity, the target lane being an added or subtracted lane, two side lane lines of the target lane being respectively connected to two side lane lines of a first lane at two endpoints of a first end of the target lane, the two side lane lines of the target lane intersecting at an intersection point at a second end of the target lane and the intersection point being connected to a side lane line of a second lane.