Abstract: A Study was made on the children's judgements undes four differentsituations: judgement of good or bad on the behaviour itself without beinginfluenced by adult'ssanction, judgement based on the children's subjec-tive intention with no consideration of the consequences, judgementsbased on different action inclinations in voluntary labour, and judgem-ents based on different feelings to ward voluntary labour. The researchis aimed at makinga comprehensive exploration of schoolchildren's ideasabout voluntary labour for public good. The results indicate: schoolchildren's idea for such labour takesshape at the age of 9.5; the critical formulative period is between theages of 7.5 to 9.5; there is still some doubt as to whether or not theviewpoint of the value clarification school, which holds that prizingund declaring one's choice and feeling is one of the important indicatorsin the forming of related moral ideas, is suitable to the study of thedevelopmental trend of moral ideas in Chinese children.

Key words: NULL