The purpose of this study was to develop a reliable and valid inventory to measure parent-child recreational sport constraint factors. This study was conducted in two phase. In stage one, the authors collected items from related literatures and made a draft titled “parent-child recreational sport constraint factors Inventory (PCRSCFI)”. The preliminary PCRSCFI contained 25 items with three sub-scales; “interpersonal constraint”, “structural constraint” and “individual constraint”. This study sampled 190 parent and administered with PCRSCFI. The exploratory factor analysis and Cronbach α were used to examine the validity and reliability. In phase two, there were 400 parent. The confirmatory factor analysis (CFA) was used to examine the goodness-of-fit of the hypothetical measurement model. The results of this study indicated that: 1. The final vision of PCRSCFI contained 15 items. The three sub-scales accounted for 58.15% of total variance, and the Cronbach α coefficient for three factors were ganged from 0.73 to 0.84. The results of PCRSCFI revealed an acceptable reliability and construct validity. 2. The results of confirmatory factory analysis showed that the three sub-scales represented three different potential variables, and the modified inventory had acceptable validity.