唐肃宗乾元元年(758)九月,大食与波斯两国兵众洗劫了广州城,并从海路逃走。本文考证此事件系为地方势力控制下的海南岛海盗所为。缘因海南岛的地方势力强大,他们经常洗劫海行船舶,并控制着庞大的波斯人村落。而且,大食和波斯兵众“浮海而去”的时间不符合远航阿拉伯的季风规律,因而他们航海的终点应在不远的海南岛。此外,文章还分析了此事件带来的影响,即在一定程度上促进了交州的重新崛起。 In the first year of the Tang Su Zong Yuan (758) In September, both the Great Food and the Persian troops ransacked the city of Guangzhou and escaped from the sea. This article studies this event as a local forces under the control of pirates in Hainan Island. Due to the powerful forces of Hainan Island, they often loot maritime vessels and control large Persian villages. Moreover, the food and Persian soldiers “floating away ” time does not meet the voyages of the Arabian monsoon rule, so they should end of navigation should be not far from Hainan Island. In addition, the article also analyzes the impact of this incident, that is, to a certain extent, contributed to the resurgence of Jiaozhou.