On the 66th birthday of the elderly in Northeast China, there is a traditional custom of wrapping 66 jiaozi for the elderly, eating longevity noodles and eating twist. Congratulations on your 66th birthday have 66 meanings. Eating longevity noodles means wishing the old people a long and healthy life, and eating twist means wishing the old people to live more and more vigorously. In the suburbs of Shanghai and rural areas of Jiangsu, Zhejiang and Anhui, it is called 66 years old to celebrate the birthday of the elderly over 66.

The sixty-sixth birthday is a folk custom of the Han nationality. Father or mother's 66th birthday, married daughter's birthday.

On the birthday, the pork leg was cut into 66 small pieces, shaped like watercress, commonly known as "watercress". Cover with rice after braising, put chopsticks in the basket and cover with red cloth. The son-in-law gave them to his parents to taste as a birthday present. More meat means a long life for the elderly.