In ancient times,the sedan chair was considered as a special transportation vehicle in China. It is lifted with shoulders and hands. The sedan chair was the most' common in the Song Dynasty. In fact, it is a removable chair fixed on two poles with or without a tent. The Chinese sedan chair was very popular in many areas in histoiy. In different ages and areas,the sedan chair has various names, for example,douzi, nuanjiao, etc. The sedan chair we know now is nuanjiao. As far as its kind is concerned, the sedan chair can be categorized into three types: sedan chair for officials, common people and weddings. Regarding the purposes, the sedan chair falls into two types: one for mountain roads, and the other for flat roads.