As an instinct, sex is a natural physiological phenomenon, which runs through people's life. Everyone's sexual behavior is not only responsible for themselves, but also for others, families and society, otherwise it will affect the stability of families and society. In this sense, the construction of sexual culture is also the need to build a well-off society in an all-round way, and it is also the need to reflect people-oriented and harmonious development between people and society. Since the reform and opening-up, with the great changes in political, economic and social life, China people's sexual concept has also changed quietly, which is related to sex.
Social phenomena emerge one after another. The main manifestations are: sexual education problems caused by adolescent precocious puberty, a large increase in premarital and extramarital sex, an increase in unmarried pregnant women, repeated prohibition of prostitution, the continuous spread of sexually transmitted diseases and AIDS, the disharmony between husband and wife's sexual life, the increase in sexual dysfunction caused by the accelerated pace of life, and the confusion of sexual concepts. Therefore, it is urgent to popularize sex science, advocate sex civilization, popularize sex education and promote sexual health.