Chinese trade official whose two-volume work Zhufan zhi (“Description of the Barbarians”) is one of the best-known and most wide-ranging accounts of foreign places and goods at the time of the Song dynasty (960–1279).

Zhao was a member of the Song imperial family and once held the position of superintendent of customs at the great port of Quanzhou in Fujian province in southern China. There he met Arab, Indian, and other foreign merchants, from whom he gathered his geographic information.

His descriptions are accurate for places close to China but not so reliable for more distant areas. In the first volume he writes of Japan, Korea, the Philippines, India, Africa, the Arab lands, and even Europe. Zhao explains that if one travels north from Spain “for 200 days, the days are only 6 hours long.” This reference to northwest Europe is the first of its kind in Chinese literature. Other European nations, such as Sicily, are minutely described. In his second volume Zhao details the various articles imported into China from foreign lands. His work not only shows the tremendous volume of trade between China and foreign countries during the Song dynasty but also demonstrates the knowledge the Chinese had of Europe before the Mongol invasion opened East Asia to European travelers.