 China revolution is first of all a political revolution and social revolution, but one the target to be criticized includes traditional morality, moreover, "Freedom" and "Liberation" are in the slogan of promotion, thus, for young people who were interested in communist party, the freedom of marriage also means freedom of sex.This freedom of sex and ignorance on physiology led to increase on abortion and further decrease of military capacity in the army.Moreover, taking peasants' conservatism into consideration, the communist party started to change the law on marriage from absolute freedom to freedom.