Based on the basic theory of traditional Chinese medicine (TCM) and its research progresses and combined modern theory of psychological stress to explore the TCM theory:liver controls dispersion and put forward the research idea.Through concluding and analyzing the researches on psychological stress and liver controls dispersion,this paper regards that psychological pressure has a close relationship with the theory liver controls dispersion.Viewing from TC,perspective,the function of liver has play a critical role in regulating psychological pressure.This provides a new idea fro the TCM theory that liver controls dispersion.