The purpose of this study is to investigate whether or not the father-child communication can be improved by intensifying of child-child communication in a particular home economics class in elementary school. For this purpose, home economics class, where the students were to have a discussion time over subjects such as menu planning and cloth planning, was given for two years to the 5th grade students till they completed the 6th grade course. All the students had sufficient opportunity to communicate with each other in their efforts to find a solution to a respective problem. Thirty-three students of the class were studied with respect to the following items : communication with father, communication with mother, communication with friends, self-confidence, and frequency of helping with housework. The results were as follows; 1) The scores indicating the communication with father, communication with mother and communication with friends in July of their 6th grade were respectively increased from the scores in April of their 5th grade. 2) The scores indicating their self-confidence were significantly increased in April of their 6th grade, whereas the frequency of helping with housework remained unchanged.