The evaluation methodology, which is actually a system of thinking, can organize various evaluation methods into a system by means of one kind of systemic view. It helps people to understand so as to select suitable evaluation methods according to different evaluation objects as well as different contexts, and to carry our evaluation work effectively. This paper introduces developing processes and main ideas of oriental and western evaluation methodologies, respectively. Wu li Shi li Ren li evaluation methodology．which is developed under oriental surroundings，is elaborated here．Nowadays,the focus of both western and oriental evaluation methodologies is how to coordinate the relationships among all groups involved in evaluation．In other words，Ren—li is a very important factor in the process of evaluation．Appropriate Ren—li analysis helps to make sure the results of evaluation Call be adopted and utilized finally．Therefore．acording to our investigation and study，CATWOE analysis in Soft System Method ology (SSM ) and Strategic Assumption Surfacing and Testing (SAST)approach would be used here in order to deal with subjective effects of human beings in evaluation work effectively．The cases of applying Wu—li Shi li Ren—li evaluation method ology alm mveal the practical value of this method ology and the importance of Ren—li analysis．