Many scientists have improved that sport can promote health and prevent diseases. Unfortunately, for the intense competition in modern society and the change of traditional production method, people inevitably face the enormous pressure and usually sacrifice much more leisure time to get higher performance in job. The young students commonly lack physical activities under the credentials and influence of high-tech recreation style. Their physical health conditions have faded away day after day. In order to explore the sport demand of commercial high school students in Taipei, 644 of valid samples are collected with self-administered questionnaires in January 20041. Description statistics, factor analysis, t test and One-way ANOVA are used to analyze the gathered data under 95% confidence level and ±4.285% sampling error. The results indicated: 1. About 40.2% students take exercise with 2 days per week and 15.3% students take more than 3 days yet 15.3% never do. 2. The types of sport concentrate on ball games and jogging with 50.8 % 20.7%. The other items are extremely low. Do these phenomena demonstrate the lack of facilities, expert teachers, and disposable leisure time? They are expected to a further study. 3. The actual sport expenditure per month is about N.T.209 and the potential expenditure is NT519. This associates with the types of sport and is too low, compared with the other recreation products. 4. There are five main factors of sport demand extracted by factor analysis: physiology & psychology factor, potential pressure factor, external organization factor, kith and kin factor, and facilities factor. The scale qualified the construct validity and content validity. 5. Among the student’s characteristics, only the ‘self-conscious health condition’ was significant in all factors. The variable of se was also significant in physiology & psychology factor. The ‘school’ was significant in four factors except potential pressure factor.