Nowadays,sexuality has caused all kinds of social problems with the influence of sexuality freedom and sexuality liberation and without the constraints of traditional morality. Sexuality education in our country,however,has not developed correspondingly. This article first analyses the necessity of implementing comprehensive formal sexuality education,then summarizes psychosexual development of children,and finally puts forward some suggestions to improve sexuality education in our country,including bringing the age of sexuality education forward,enriching the content of sexuality education,paying attention to the continuity of sexuality education for all ages,and training teachers qualified in sexuality education.