The sorting rate of second-hand clothes is 30%. According to relevant data, about 26 million tons of old clothes are thrown into the trash can every year, and the sorting rate of these old clothes is as high as 30%. There is a great demand for second-hand clothes in foreign markets. Africa has a population of more than 654.38 billion, and there is no textile industry. All textiles depend on imports, and the market demand is huge. Second-hand clothing trade is the transaction or exchange of second-hand clothing goods.