Abstract: Up to now, the content of research on conformity is limited inthe respect of cognition of sensa-Lions and perceptions. Subjects inthis research on children's moral cognitive development were requ-ested to make their judgements individually and respectively. Sothere is necessity to explore the influence of conformity on children'smoral judgement under group situations. In our research, four group situations were set up, three moralstories after the pattern of "result vs. intention" were used as ex-perimental materials, and 353 subjects aged 8, 10 and 12 took part. The results show: the conformity of children's moral judgementoccurred obviously under the influence in all the four group situa-tions. Among them, the situation of adult-authoritativeness groupis the most powerful, next the small group and peer-leader group,and the mini group the least.

Key words: conformity of moral judgement, moral stories, group situation, adult-authoritativeness group, peer-leader group, small group