Cold food is actually Tomb-Sweeping Day. The Cold Food Festival is one day earlier than Tomb-Sweeping Day, and it was set up to commemorate meson push. Jie Zitui is the minister of Jin State. After the civil strife in the state of Jin, he has been fleeing around with his son Zhong Er. The escape lasted 19 years, and the life of escape was very difficult, and there was often no food. One year, when they fled to Weiguo, the food they carried was stolen from scratch, resulting in their lack of food. Although they also asked local farmers for food, they were teased instead of getting food.

Zhong Er is hungry, because he hasn't eaten for a long time. Worried that Zhong Er would starve to death, Jietui sneaked into the ravine to cut off a large piece of thigh meat and cooked a meal for Zhong Er. Zhong Er didn't know the truth until after eating. Deeply moved, he promised meson that if he succeeded in becoming a monarch one day, he would never forget his kindness. Later, Zhong Er really returned to the State of Jin as a monarch and became the famous Jin Wengong. However, meson push has not been reused, but it is not Zhong Er's ingratitude, but meson push himself is unwilling.

After Zhong Er acceded to the throne, Jiexiu took his mother to the mountains. When Zhong Er knew about it, he went to ask Jiexiu to come out, but Jiexiu refused to come out to see him. Helpless, Zhong Er set a fire on the mountain, trying to force the meson to push down the mountain. Who knows that even so, meson push did not appear, and was finally burned alive in the mountains. After he was burned to death, Zhong Er buried him in a hidden place and ordered that smoking and lighting should be prohibited on his Memorial Day. That is to say, only in the Cold Food Festival can you eat cold food, which is named after this custom? Cold food festival? .

The Cold Food Festival has been established for more than 2000 years. On this day, in addition to eating cold food, people will also carry out activities such as sacrifices and outings. After the appearance of Tomb-Sweeping Day, the Cold Food Festival quietly merged into Tomb-Sweeping Day, so now most people only live a Qingming festival, but eat cold food.