In the process of children's growth, in addition to the development of language and movement skills, the development of thinking is also a great leap forward period. For painting, from the initial contact with painting materials to the gradual completion of painting works, a series of development process of the whole painting has become another form for us to understand a child. Painting is different from language. Painting itself is an activity. Children's painting is rich, unique, spontaneous and complex, which is a means of communication. Similar to language, but it is a special symbolic representation.