The research on how to get border line, feature line and section line from point cloud data was done and a new segmentation method based on feature line was put forward. At first, the research on feature recognition, interrelationships was conduced by applying this method. The point cloud data into corresponding segments was subdivided secondly. At last the surface based on range data was constructed and complex surface reconstruction was finished. The method was used on a motorcycle front cover panel reconstruction. It has advantage in point cloud data segmentation, feature line pick-up, complex surface reconstruction and has resolved the problem of complicated surface fitting.