Chop boat is a medium-sized ship on the Pearl River, which appeared in the Qing Dynasty. It so named because of the shape of cut half of watermelon. Foreign literature is also called ＂chop ship＂, and think this is the only official license connected with cargo ship. According to the ＂Guangzhou time＂ Guilu data records, chop boat load of about 50 tons. The main route of chop boat was Pearl River waterway between Whampoa port and Thirteen-Trades Monopoly, Pearl River waterway between Guangzhou and Macao. Its main function is between the ocean ship with business hall connecting transit goods, also shuttle between Guangzhou city and foreigners in two. Chop boat is mainly flat ship on the transportation of import and export commodities between Whampoa port and the city of Guangzhou, also on carrying foreign businessmen between Macao and Guangzhou. It play an important role in the transfer system of foreign trade in Guangzhou in the Qing dynasty.