This study examined the developmental process of drawing activity during the socalled scribbling stage, based on a longitudinal observation of my daughter from 0-3 years of age.The purpose of the research was to analyze developmentally the repre -sentational nature of drawing activity under social interaction.The main results were as follows: (1) The developmental process of drawing was divided into six stages with regard to pre-representational or representational drawings.(2) Intention or topics of drawing occurred early under social interaction with mother and others. Under such shared topics, developmentally first, she made marks on the drawing made by another; secondly, on particular parts of the drawing, and lastly, she participated in the joint drawing task.(3) In naming, intention of drawing and figurative expression, drawing under social interaction preceded a drawing by herself.(4) Since2years of age, she had reached the stage of drawing a figurative representation.