Mainly expresses the meaning of warding off evil spirits and driving away miasma.

The folk proverb says: "stick a willow in Qingming, and stick a mugwort in the Dragon Boat Festival". In the Dragon Boat Festival, people take the insertion of moxa and calamus as one of the important contents. Every family sweeps the court, to calamus, moxa inserted in the door eyebrow, hanging in the hall. And with calamus, moxa, pomegranate, garlic, dragon boat flower, made of human or tiger-shaped, known as Ai man, Ai tiger; made of wreaths, ornaments, beautiful and fragrant, women compete to wear, to drive away miasma.

Legend has it that a long time ago, according to the routine of the God of Plague in the Dragon Boat Festival to send disaster, the emperor of the sky to produce compassion, they sent people down to study the people's situation. On May 5, the emperor's envoy dressed as an oil seller yelled, "One gourd two pounds, two gourds three pounds." Everyone scrambled to buy it, except for an old man who not only didn't buy it, but also told the old man that he had miscalculated.

When the oil was sold out, the old man followed the old man who didn't buy the oil and said, "You are a good man in the world, the God of Plague is sending a plague tonight, so if you put moxa and calamus under the eaves of your house, you will be able to avoid the plague." When the old man heard this, he went from door to door and told all the people, so every family put in moxa and calamus, and the God of Plague was unable to send plague, and the people were saved safely. Then it was passed down from generation to generation, and became customary.

Hanging the role of wormwood:

Duanwu Festival hanging wormwood pay more attention to the rural areas in the Dragon Boat Festival wormwood "two do not hang" said.

One of them is not hung by the sun after the mugwort. Dragon Boat Festival is in midsummer, is the strongest herb medicine, the reason why people will say that the sun after the mugwort can not hang, is because the sun after the mugwort, the medicinal properties of the sun has become less intense, so in order to make the mugwort greater medicinal properties, mosquitoes and flies, the more obvious role, people will generally be in the Dragon Boat Festival early in the morning on the mountain picking.