The purpose of this report was to clarify our philosophy concerning health-related physical fitness system for the students and staffs in Keio university. And a new physical fitness system was improved based on the philosophy. A "health-related physical fitness" was proposed in the mid 1970s in the United States. Compared with "motor fitness", it is an arrower concept that usually includes only those fitness components that can prevent disease and/or promote health. The new test consisted of three items as regarding physique (standing height, body weight and %body fat) and four items as regarding function (flexibility, muscular endurance, cardiovascular endurance and power). One of new aspects of the fitness system was that those measures were more closely for an individual. We analyzed the data obtained by the new test from the students (male ; 181, female ; 97). As the result, fitness level of those students was not generally less than the other standard measurement values (e.g. Japanese youths' and Keio University students'standards). It was suggested that the new test was fitted to measure a physical fitness level of the students,  and we confirmed the propriety of the test as health-related physical fitness test. There are some prospects for development of this new health-related physical fitness system in Keio University. As a fitness system, we have to consider not only measurement of the health and physical fitness but also excersise prescription for the students and staffs in the future.