Abstract: The first "Grand Turk”coming to Guangzhou in 1786 was the third American merchant ship after the   "Empress of China.”Its trade plan was not planned，but inspired by the success of "Empress of China”and brought about by American merchants’trade transformation from Cape of Good  Hope to India and Southeast Asia when Britain clamped maritime trade on new-born America. Through mutual corroboration of Chinese and English archives and documents this article explores "Grand Turk”’s trading situation in Guangzhou，and does a textual criticism and correction nn historical records and relics of the past.