The invention discloses a linear fairing and mounting method for a ship anchor platform hawse pipe in the field of shipbuilding. The method comprises the following steps: firstly, based on computer aided drawing, linear drawings of the anchor platform, the hawse pipe and an anchor platform cover plate are drawn; the fairing treatment on the linear drawings of the anchor platform, the hawse pipe and the anchor platform cover plate is carried out to generate numerical control files which guide a numerical control forming system to automatically process the anchor platform, the hawse pipe and the anchor platform cover plate; an anchor platform structural plate is prepared; finally, the anchor platform, the hawse pipe, the anchor platform structural plate and the anchor platform cover plate are assembled. The method has the characteristics of simple design, easy processing and construction and the like; compared with the similar technique of foreign countries, the construction period is reduced by more than 20 days, and the processing quality is simultaneously ensured.