"Pai Dong" is a word from Guangdong, which refers to an open and simple public dining place. However, this name is probably a relic of ancient corruption.

According to the research on the Southern Song Dynasty palace menu discovered, even meat was not available in the palace every day. Sometimes, the palace aides used their own money to treat the emperor, nobles, and ministers to dinner. All of a sudden, it became a trend, because it was taking turns to treat guests and waiting in line, which was called "queuing".

In the beginning, of course, I paid out of my own pocket or found somewhere to reimburse. By the time Lizong of Song Dynasty, I began to get reimbursement from the treasury of the central government and all levels of finance. At that time, Guangdong Economic and Strategic Envoy Chen Zongli was transferred to the Privy Council to sign matters, that is, he was transferred from the commander of the military region to the headquarters as a senior assistant. He was very dissatisfied when he saw this "corruption" phenomenon.

He said that when subordinates treat their superiors to dinner, there are only two purposes. One is to make some profit and eat the difference when reimbursing, and the other is to build relationships. Therefore, the phenomenon of "lining up" should be prohibited. But when the report was submitted, there was no result. People who eat and drink see that nothing is wrong, so they naturally eat more enthusiastically, and they are not limited to low-level consumption such as eating and drinking.

Later, "Paidang" was introduced to the people and became a simple, cheap and mass consumption form. Because they are often set up on the street, with a large number of tables and chairs, Cantonese people often call stalls "stalls" or "stalls", which later turned into "food stalls".