Why did Quanzhou become the world's largest port during the Song and Yuan dynasties?

Quanzhou, the ancient city hailed by Marco Polo as the “City of Light.” Red walls reflect green shade, sea breezes sweep the ancient port—the only starting point of the Maritime Silk Road recognized by the United Nations, and during the Song and Yuan dynasties, it was renowned alongside Alexandria, Egypt, as the “world's largest port.” Quanzhou's rise from an ordinary port on the southeast coast to a bustling hub where “ships from all nations gathered” was no accident. It was the inevitable outcome of multiple factors accumulating over time.

Tang Dynasty

In the rise of Quanzhou, the Tang Dynasty served as a period of accumulation. The geopolitical realignment triggered by the An Lushan Rebellion became a pivotal turning point in its destiny. Prior to this, the Central Plains dynasties relied primarily on the overland Silk Road for external exchanges. However, after the rebellion, the northern regions descended into turmoil, severing the Silk Road. The imperial court was thus compelled to shift its focus toward the southeastern seas. This opportunity allowed Quanzhou's geographical advantages to come to the fore. Quanzhou's inherent strengths lay in its mountainous and maritime topography: it possessed a cluster of natural deep-water harbors known as the “Three Bays and Twelve Ports.” The estuary plain formed by the confluence of the Jinjiang and Luoyang Rivers provided sheltered anchorages while connecting inland waterways for river-sea combined transport. Coupled with its indented coastline, predictable monsoons, and stable ocean currents conducive to long-distance voyages, it became the ideal starting point for the Maritime Silk Road.

The southward migration of northern populations following the An Lushan Rebellion supplied Quanzhou with ample labor, enabling the construction of water conservancy projects and the reclamation of farmland to strengthen its agricultural foundation. Concurrently, the Tang Dynasty's open policies spurred maritime expansion, allowing Quanzhou to rise to prominence through its geographical advantages. It gained renown as one of “China's Four Great Ancient Ports” alongside Guangzhou, Mingzhou, and Yangzhou, laying the groundwork for its subsequent development.

Northern Song Dynasty

During the Northern Song Dynasty, Quanzhou achieved a pivotal institutional breakthrough. In 1087, the imperial court established the Quanzhou Maritime Trade Office, granting it full authority to oversee the taxation and regulation of foreign goods and maritime vessels. This move not only recognized Quanzhou's status as a major port but also established a standardized overseas trade management system.

At this time, Quanzhou also laid a solid foundation supported by its industrial base. Dehua Kiln's white porcelain and Cizhao Kiln's celadon were produced in bulk, while Anxi's iron smelting techniques reached maturity. These handicrafts, transported via inland waterways to the port, became core export commodities. Its geographical advantage as the “meeting point of the East China Sea and the South China Sea” made it an essential stop for merchant ships from the South Seas. Sailing vessels filled the skies like clouds, gradually forming a trade network connecting Korea, Japan, and Southeast Asia.

Southern Song Dynasty:

After retreating to southern China, the Southern Song court relied on overseas trade as its “economic lifeline.” Quanzhou seized this new historical opportunity and achieved technological breakthroughs. Quanzhou artisans pioneered the “watertight compartment” technology, dividing Fujian ships into 13 independent compartments. This innovation ensured vessels remained afloat even with partial damage (outpacing Europe by over 400 years), enabling merchant ships to safely sail as far as East Africa. The widespread adoption of the compass and astrolabe further expanded maritime reach. The Southern Song dynasty's Records of Foreign Nations documented 58 shipping routes spanning vast seas from Japan to East Africa. In infrastructure, Luoyang Bridge employed “raft foundations” and “oyster-based reinforcement”—using oyster secretions to bind stones—paving the way for subsequent projects like Anping Bridge, which collectively built an integrated water-land transportation network. It was this accumulation of achievements that enabled Quanzhou to surpass Guangzhou by the end of the Song Dynasty, becoming China's largest foreign trade port. The emergence of Pu Shougeng, who monopolized Quanzhou's spice trade for nearly 30 years and controlled a vast fleet of merchant ships and commercial networks, laid the groundwork for Quanzhou's peak during the Yuan Dynasty.

Yuan Dynasty:

During the 13th and 14th centuries, the Mongol Yuan Empire's western conquests and southern campaigns opened up both land and maritime Silk Roads. For the first time in history, China achieved a dual-opening pattern connecting its northwest inland regions with the southeast maritime world. This historic opportunity ushered in an “Golden Age” of ancient development for Quanzhou.

In 1277, the Yuan Dynasty established its first Maritime Trade Office in Quanzhou, appointing Pu Shougeng as the Commissioner for Maritime Trade Affairs in Fujian and Guangdong. Leveraging his command of maritime vessels, talent, and overseas resources, Quanzhou's overseas trade rapidly expanded: it conducted commerce with 98 countries and regions, exporting over 90 types of goods and importing as many as 200 to 300 varieties. By this time, Quanzhou Port had developed a mature system of “external port distribution and internal port transshipment.” When Marco Polo passed through Quanzhou in the early Yuan Dynasty, he estimated its throughput capacity to be a hundred times that of other Mediterranean ports like Alexandria. Quanzhou had become not only China's maritime trade hub but also a global distribution center for goods and a crossroads of civilizations.

The rise and fall of this “City of Light” encapsulates half of China's maritime trade history and validates a universal truth: an open and inclusive mindset, the vitality of technological innovation, and the wisdom of adapting to local conditions are the core codes enabling port cities to weather historical storms. Ocean Mold will carry forward and amplify this core formula. Guided by an open and inclusive spirit of collaboration, maintaining the relentless drive for technological innovation, and adhering to a development approach tailored to local conditions, we will advance steadily amidst the industry's evolving currents.