The present invention discloses a topology data extraction method based on an AutoCAD plane intersection engineering drawing. The method comprises the following steps of: extracting all line-shaped road markings in a road marking layer, and performing clustering to form a road section array; traversing elements of the road section array, extracting a driveway edge line and a guide arrow, determining whether a road section is a two-way traffic road, extracting a separation facility for opposite traffic flows (a two-way traffic section) and driveway boundary lines, and generating a geometric topology sub-section Link; according to an average value of intersection points of all Link extension lines, generating a geometric topology node Node, and calculating a north angle NorthAngle of each Link; generating a logical topology directional road sub-section Arc; generating a logical topology lane, and associating the lane with the guide arrow; and generating a logical topology lane connector LaneConnector. According to the present invention, a complete geometric topology, a complete logical topology and complete turning rules of an intersection can be obtained, thereby enriching intersection modeling methods.