2019 marks the 100th anniversary of the May Fourth Movement. The May Fourth New Culture Movement is a patriotic movement to save the nation, an enlightenment campaign to pursue modernization, and also an ideological revolution that rethink traditional values. Traditional values like Chinese family ethics and family system that lasted for thousands of years became the target of the revolution. Intellectuals at that time opposed traditional family ethics, advocated individual liberation, and pursued autonomous marriage and new family models. After the May Fourth family revolution, the nuclear family gradually became the mainstream.