This research is to define inline skaters` various needs and wants on inline skating programs in which participants have been decreased, and to identify the participants` general traits and pattern of their involvement in the programs. It also tries to provide substantial information on why the participants make a dropout in the middle of programs. Subsequently, this study intends to suggest solutions of increasing population of inline skaters based on data provided. The subjects of the research are people or inline skaters who are members of inline skaters` clubs and have joined inline skating programs. They are over twenty years old adults and live in CHUNG NAM province. They are asked to respond to survey questionnaires and the number of the surveys collected is 267 out of 300, about 89% of response is turned in with responses. However, eight out of the 267 responses is excluded under the researchers` discern due to the inappropriate or missing responses to the survey questions. Therefore, total of 259 responses (86.3%), one 174 males and 85 females, is used as valid samples. SPSS 12.0 is also used to do Chi-square test and cross analysis. Two hypotheses are featured in the research: first, there should be difference on actual condition of involvement in an inline skating program according to participants` traits and characteristics. Secondly, there would be difference on reasons of dropout of the program according to the participants` traits and characteristics. The outcome of the research conducted based on data and methods are following; there have been significant differences in the actual condition of participation in an line skating program due to the participants traits and characteristics and secondly, there have been statistically significant differences in the cause of dropouts according to their traits and characteristics. base on the research , professional inline skating trainers should be on riding to improve and motivating the inline skaters` motor skill. Furthermore, inline skating instructors should enlarge diversity on inline skating programs by introducing various programs to make people interested in the inline skating program and eventually to increase inline skating population. They also should create and develop programs in which people show interests in the program and do inline skating regularly with anticipation.