I published an assessment scale about social abilities of children （application age : 1:0 -10:11） in 2006. And I reported about standardization, assessment method, reliability and validity of this scale in 2013, 2014. Now this scale is used for evaluation of intellectual and developmental disabilities on seven Child Guidance Centers. In my previous paper（2013）, I reviewed about the advisableness of the arrangement of each assessment item and pointed out the contradiction of some item arrangement. Then I reviewed some contrarieties and made a revision rating-scale experimentally. The revision points are as follows. 1 The newly created evaluation item : 9 items 2 The evaluation item which changed a description : 6 items 3 The change of the standard development age of the evaluation item : 8 items 4 The change of the area arrangement of the evaluation item : 1 item I evaluated the social abilities of 106 children（0:6 - 6:3） using the new rating-scale. And the evaluation result was no-problem approximately. The coefficient of correlation between the evaluation result and the age every each area were 0.91 - 0.97 and showed a very high correlation. Because it got this result, it was possible to make me complete the tentative plan of the new scale about social abilities of children.