The purpose of this study was to investigate the extended leisure constraint questionnaire's psychometric properties in undergraduate students. To accomplish study purpose, complete enumeration survey and statistical analysis were conducted for 410 students enrolled D and S university. A research tool used in this study was an extended leisure constraint scale developed by Eung-Joon KIM (2006), which was originally from Crawford & Godbey(1987). Total 26 questions were used with 5 point Likert scale and high point stands for higher the leisure constraint. Frequency analysis was conducted with SPSS 20.0 WINSTEPS 3.74(Linacre, 2012) was used for calculating item goodness-of-fit and subject reliability, scale propriety, item goodness-of-fit and item level of difficulty, and level of difficulty were calculated. Statistical analysis showed results as follows. First, it was reported to be suitable for subject infit/outfit in the extended leisure constraint as 1.04~1.05 and the extended leisure constraint's scale infit/outfit as 1.01~1.04. Second, 5 scale was unsuitable for scale propriety resulting from stage index judgment. Third, 4 questions showed problems in item goodness-of-fit and item level of difficulty. Finally, scale propriety was reported to be inappropriate for considering undergraduate students' ability distribution and scale level of difficulty.