Recently, improvement of port is not only “physical distribution function”, and “water amenity function” seems to be also necessary. From such background, improvement of various water amenity functions is desired in OTARU, ISHIKARI BAY NEW, IWANAI port which is main port in Hokkaido Shiribeshi region. It is necessary to grasp request of user in order to improve such water amenity function. Then, consciousness investigation for OTARU port, ISHIKARI BAY NEW port, and IWANAI port was carried out in order to grasp function which Sapporo citizen requires in port. And, AHP which was one of the consciousness investigation analysis procedures was noticed in this investigation. Then, questionnaire which utilized this technique was carried out. By stratification two stage random sampling, 900 households in Sapporo city were extracted, and recovery number was 194. This study reduced evaluation burden to examinee using concise AHP which combined “Relative Position Measurement Approach” with “Semantics Measurement Approach”. From analysis result, next was proven. (1) Needs of rest-view function and commerce function are high. (2) By age attribution, weight of requiring function is different. (3) Total evaluation result of OTARU port is high. It is a reason that evaluation of restprospect and commerce function is high. And, characteristics of AHP were utilized, it was proposed that port improvement effect analysis method which considered Public Involvement.