Legend has it that after Qu Yuan's death, the people of Chu were so sad that they flocked to the Miluo River to pay homage to Qu Yuan. The fisherman paddled the boat and fished for his real body back and forth on the river. A fisherman took out rice balls, eggs and other foods prepared for Qu Yuan and threw them into the river, saying that ichthyosaurs, shrimps and crabs were full and would not bite the doctor. People followed suit after seeing it. An old doctor took an altar of realgar wine and poured it into the river, saying that he would stun the dragon water beast with medicine so as not to hurt Dr. Qu. Later, people were afraid that rice balls would be eaten by dragons, so they came up with the idea of wrapping rice with neem leaves and then wrapping it with colored silk to make it develop into brown seeds.

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The Dragon Boat Festival, also known as the Five-Day Festival, is related to many customs. Besides eating "Huang Wu" and "Wuzi", we also hang "Wu Rui". On this day, there are some different symbolic customs all over the country to eliminate evil and pests. There is a folk custom of eating "Huang Wu" and "Zongzi" on the Dragon Boat Festival in southern China. "Huang Wu refers to eel, yellow croaker, cucumber, salted egg yolk and realgar wine. Wuzi refers to zongzi, eggs (salted eggs), garlic (boiled garlic) and peaches and plums. Five pistils refer to calamus, wormwood, pomegranate flower, garlic and dragon boat flower (Shandan flower).

Cucumber mixed with peaches is a combination of "Huang Wu Zongzi" in Dragon Boat Festival. Huzhou people also have the custom of eating tofu (printed in Zhang Tianshi).