The invention relates to the field of high-precision electronic maps, and discloses a method for generating lane lines and road surfaces, which comprises the following steps of: obtaining road information which comprises total lane number information and width information of roads; processing to obtain relative position data of lane lines according to the road information; configuring attributes of the reference lines and generating attribute information, wherein the attribute information comprises position information of the reference lines and shape information of the reference lines; associating the relative position data with the position information to enable the reference line and the lane line to be generated to have a corresponding position relation; generating lane lines visuallyaccording to the position relation; wherein the generated lane line comprises a lane edge line; generating a curb outwards at a set distance according to the lane edge line information; filling the areas between the curb and the lane lines and the areas between the lane lines to generate the road surface, wherein the road surface can correspond to roads of complex scenes, and meanwhile the lane lines and the road surface on the electronic map are higher in precision.