Dai Xiao is a kind of etiquette, which is best worn on the right arm.

The amount of mourning for the family depends on the age and family situation. The eldest son is filial, followed by other sons and daughters-in-law, and the family is open to nephews and nieces. A lonely old man who has no children or daughters should also have Xiao before his death, otherwise no one will hold a spirit tablet or portrait.

The main filial piety cloth is as long as the coffin cover, and the rest is slightly shorter. When it is worn, it is tied with hemp rope, which is called "Pima Dai Xiao". The dutiful son should kowtow to the bearer. If he has something important to do, he should take off his mourning clothes.

If his father dies, the "funeral stick" held by the dutiful son is made of bamboo; If mother dies, it will be made of paulownia wood. This is Gu Yan's "Father's funeral is outside, so the staff is taken from bamboo;" Mother's Day is also included, so the staff is taken from Tung. Nowadays, there are many young people in the towns of Dai Xiao, and Daizha has an armband with the word "filial piety" in white on a black background.