Sex education in early childhood affects children's understanding of sexual identity in the future. During this period, children should begin to know their own gender and enter gender roles initially. Boys should wear boys' clothes to encourage them to be strong and brave, and girls should wear girls' clothes to teach her to be gentle, sweet and clean, and so on. It is not advisable to raise boys as girls and girls as boys, because this may be one of the reasons why children will become gay in the future, and it may also be the reason for family discord in the future. At the same time, boys should be polite to girls, and girls should know not to let others touch their bodies casually.

Sex education in childhood lasts from six to ten years old. At this time, the child's sexual awareness is further enhanced, and he is unwilling to sit at the same table and go the same way with the opposite sex, and is proud of his gender. In this case, we should give affirmation first. If children are found to hate their gender roles, they should be corrected in time to prevent gender roles from being reversed in the future. It is also necessary to teach children the basic knowledge of sexual hygiene and learn to keep the sexual organs clean. Let children have a sense of distinction between men and women and how to protect themselves. In particular, we should educate boys to respect and care for women, educate girls to be aware of prevention, to understand what sexual assault is, to teach children the general moral principles of male-female communication, and to teach children self-respect and self-love.