Integration of regional port resource in the shipping industry has become one of the hotspots, this paper researches
on the problem of evaluation on major ports on scope meaning of region from the standpoint of port scale. Based on the improved
port handling capacity and container throughout capacity, this paper constructs an evaluation index system of major ports on the
scope meaning of region, then takes coastal megalopolis home and abroad as examples, uses AHP-RS method to evaluate the
major ports in coastal megalopolis. This paper provides a reference for the port in region to recognize and evaluates own relative
scale level, and offers a basis and train of thought to regional port group under the framework of coastal megalopolis to plan and
develop orderly. Besides, AHP-RS method was verified to be scientific and effective through instances, which can be worthy for
further promotion.