China's shipping system began in the Tang Dynasty and ended in the Ming Dynasty. The municipal shipping department is a full-time management institution for entry and exit at sea in ancient China. The development of China's foreign trade began in the Han Dynasty, but the trade at this time was mainly land. Although official enterprise's overseas trade began in the period of Emperor Wu of the Han Dynasty, the maritime trade in the Han Dynasty was still very underdeveloped. Although the overseas trade of China in Sui Dynasty developed further, it still did not occupy a major position. In the Tang and Song Dynasties, especially in the Song Dynasty, the situation changed greatly. Overseas trade occupies a very important position in the history of China's foreign trade, especially the rise and vigorous development of maritime trade, which makes the court get more and more income. As a result, the Tang Dynasty set up a special agency to manage foreign trade affairs-"the Municipal Shipping Department".

Shibo Division was the agency in charge of foreign trade in ancient China. During the reign of Emperor Xuanzong of the Tang Dynasty (7 13 ~ 74 1), there was a city ship ambassador in Guangzhou, who was generally a eunuch, and was the predecessor of the city ship company.

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