The purposes of this investigation were to develop an inventory designed to quantify the behavioral norms in sports games, and to evaluate the reliability of these scale forms. In order to achieve the purposes, two preliminary surveys and the final main survey were con-ducted to the boys and girls in several grades. (i.e. the fourth, fifth, and sixth grades of the elementary school, the first, second and third grades of the junior high school, the first and second grades of the high school and university). In the second preliminary survey, the questionaires consisting of l05 items were used. The items were prepared classifying the various opinions offered by these boys and girls in the first preliminary survey. For categorizing the items, a principal factor solution method with normal varimax rotation was applied to "105×105 correlation matrix" which was calculated from the all subjects. And the 49 items in all were selected from each category by the weight of factor loading. In the final survey, the questionaires consisting of 49 items were conducted to the 3293 boys and girls other than those for in the two preliminary surveys. After the good-poor analysis, the 29 items were selected for the final scale forms. The reliability of this scale forms were tested by the index of consistency and the correlation coefficient in test-retest, and credible results were obtained.