Many previous studies have pointed out that children's self-talk is not only a way for children to express themselves, but also a way to relieve tension and anxiety. Moreover, children's self-talk realizes the function of self-regulation and shows the ability of self-regulation. As a way of communicating with oneself, self talk can help children to plan and organize their own behaviors. It can be said that self talk is the embodiment of children's strong self-regulation ability. Some soliloquy can also help children plan their own activities, describe the facts, name things, reflect their understanding of things, expand rich imagination to realize their expectations, adjust their behavior and guide their activities. In soliloquy, children express themselves and realize themselves.