This study conducted an in-depth investigation on experiences that children would go through during their drama activities in order to understand not only pro-social behavioral patterns of the children but also how the patterns would change. First, the study noticed that during the drama activities, the children were willing to wait on friends and gave words of encouragement and compliment to their peers which proved the children’s being capable of doing pro-social behaviors. Second, in terms of how the children’s behaviors would develop during the drama activities, the study learned that the children improved their pro-social behavioral patterns from giving a help to the peers focusing on oneself only to helping the peers considering the peers’ different situations. Third, another pro-social behavioral pattern of the children was observed during the drama activities which was the research subjects’ sharing with others. Fourth, the research subjects performed a new pro-social behavior in order to resolve multiple conflicts and troubles during the drama activities and, they tried to work out the problems out in positive ways cooperating each other.