Abstract: As Chinese ship design guideline for seagoing vessel’s bow anchoring CB/Z 280-201 1 only applies to steel seagoing ship with 2 000 DW T and above，thus it’s necessary to find new design rules for those volumes less than 2 000 DWT.This paper summarized the characteristics of anchor equipment arrangement on small seagoing ships and found that even the spatial location were adjusted many times， it was still hard to meet the length demand of hawse pipe.Thus the paper proposed a method to determine the location by analytic geometry ，after analyzing the geometric model of hawse pipe.Based on the secondary development of CAD，the optimum arrangement of hawse pipe was carried out.It is validated that the proposed method can effectively meet requirements of the anchoring arrangement in practice.