Pants generally refers to the clothing that (people) wear below the waist, usually made of a waist, a crotch, and two trouser legs sewn together. The earliest pants of the ancients were very loose and tied with a string under the waist, while women did not have them, they did not have to work. Later on, when equality between men and women was formed, women also had to work, and with pants, they became tight.

According to historical records, the ancient people in the Central Plains wore crotched pants only started from the Warring States period. At that time, Zhao Wuling Wang in Handan, Zhao State, the implementation of "Hu clothing riding and archery" military reform, is to wear the Hu people's clothing, learning the Hu people riding horses and archery combat methods, after that, the Central Plains people wear pants, to the Han Dynasty, Han Zhaodi, the crotch of the pants is called "pants".