“五口通商”是1842年中国清政府乖英国侵略者签订的《南京条约》中确定的。这个条约规定:广州、厦门、福州、宁波、上海为通商口岸,英国可派驻领事,携眷居住;外国向通商口岸倾销商品,中国不能自定关税,须与外国“领事等官议允”;外国舰船进出通商口岸,中国无权管理;外国人 The “Five-State Deal” was set forth in the “Nanjing Treaty” signed by the Qing Chinese government in 1842. This treaty stipulates that: Guangzhou, Xiamen, Fuzhou, Ningbo and Shanghai will be the ports of commerce and the United Kingdom may hold consuls and residence with dependents. Foreign countries will dumped their merchandise at trade ports and China will not be able to set its own tariffs and must negotiate with foreign countries such as “ ”Foreign ships entering and leaving trade ports and China has no right to manage; foreigners