This is a kind of advertisement, which means that it is for sale. A straw means that the person’s home has no ridge of land, one house, not a single grain of food, and is hungry and poverty-stricken, just like this straw. , you need to sell yourself before you can survive! ! ! Therefore, when selling oneself, one would put straw in one's body to show that one is selling oneself.

It is just a sign for retailing certain items. If there is a store, it can be used as a cover. Placing a grass tag does not mean that you are too poor to live. And the person who sells the straw indicates that he is poor! The idea of ??selling one's body by wearing a straw tag on one's head can be seen in descriptions in novels and operas. This is a folk custom.

The ancient grass signs probably have the same function as today’s bars and price tags, indicating that the item is for sale. One stick is sold at a low price, two sticks are sold at a normal price, and three sticks are sold at a high price

It should have originated in the slave society. The market at that time was called the grass market. Most of them are located at the main traffic thoroughfares or at the location of Jindu Station. Because there is a lot of fodder around the market, the houses are simple and mostly made of grass, and there is a lot of trade in grain and grass, so there is grass everywhere. When marketgoers bring something to sell, they pick up a piece of grass and stick it on the thing to show that they are selling it. This gave rise to grass-label advertising. Advertisements with cursive labels were very common in ancient times, such as "Yang Zhi sells knives" in "Water Margin" and "Fan Jin sells chickens" in "The Scholars", both of which put a cursive label on an object. This form can still be seen in rural markets.