First of all, it is one of the five basic courses of Chinese Islam, which prohibits not only eating and drinking during the day, but also sexual intercourse. Second, China used to bathe and change clothes before the sacrifice, and did not drink or eat meat to show his sincere respect.

Ramadan in Islam is the second year of the prophet Muhammad's migration from Mecca to Medina, and it is the month of fasting courses. Fasting for up to 30 days. Islam stipulates that Muslims should fast for the whole month except the sick, pregnant women, lactating women, young children and travelers. Fasting from dawn to sunset, no eating and drinking, no sexual intercourse, no ugly behavior and no foul language. Islam believes that the significance of fasting is to cultivate character, restrain selfish desires, experience the hunger of the poor, sprout compassion, help the poor and help the poor, and do good deeds.