Ritual(li)and custom(su)are two fundamental categories of family rituals in the Song dynasty.Early moralists mostly commented on customs from the standard of ancient rituals and required to abolish those that were not in accordance with them.Through textual examination on ancient rituals and critical thinking，they often criticized and boycotted various kinds of wedding customs.In the meantime，Confucian scholars of the Song dynasty incorporated customs into ancient rituals and ritualized those wedding customs that they considered in conformity with ancient meanings.Cheng Yi and Sima Guang were pioneers in that and Lv Zuqian epitomized the trend of ritualization.However，Zhu Xi objected that way.Instead，he compiled Family Rituals based on ancient rituals and tried to change customs with ancient rituals.From reviving ancient rituals to following customs and then back to reviving，the development of the standards of family rituals made by Confucian scholars in the Song dynasty was similar to the path of a compass，
which provided a new model for understanding family rituals of the time.