The History of Silk: China’s Most Consequential Export

vibrant assortment of colorful silk shawls
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If you are working with an online Chinese teacher or using a platform to learn Mandarin online, silk will appear in your studies earlier and more frequently than you might expect. It runs through Chinese poetry, idiom, historical narrative and commercial vocabulary as a material that carried not only economic but cultural and political weight across a very long period of Chinese history! 

The origin of silk production in China is traditionally attributed to the legendary empress Leizu, consort of the Yellow Emperor, who according to classical accounts discovered the properties of the silkworm cocoon when one fell into her tea and began to unravel. The story is almost certainly mythological, but it preserves a genuine historical reality: silk production in China predates reliable written records and extends back at least five thousand years, with archaeological evidence of silk fibres and weaving tools found at Neolithic sites in Zhejiang and Henan provinces. The silkworm, Bombyx mori, had been domesticated from its wild ancestor by the time of the earliest Chinese dynasties, a process of agricultural transformation so complete that the domesticated silkworm is no longer capable of surviving without human intervention. It cannot fly, cannot feed itself independently, and exists entirely within the managed environment of sericulture.

The production process that transforms silkworm cocoons into woven fabric is technically demanding and extraordinarily labour-intensive. Silkworms are fed exclusively on mulberry leaves, requiring the maintenance of mulberry orchards alongside the rearing facilities. Each silkworm spins a single continuous thread of silk, between 300 and 900 metres long, that forms the cocoon within which it pupates. The cocoons must be processed before the pupa inside completes its metamorphosis and breaks the thread, so timing is critical. They are immersed in hot water to soften the sericin protein that binds the thread, and the thread is then carefully unwound and reeled. Multiple threads are twisted together to produce a yarn strong enough to weave. The resulting fabric is the product of an integration of agricultural, biological and textile knowledge that took generations to develop and that China maintained as a closely guarded monopoly for a remarkable length of time.

The monopoly on silk production was one of the most consequential commercial secrets in ancient history. The Chinese state treated the knowledge of sericulture as a state secret, and historical accounts report severe penalties, including death, for anyone who attempted to transport silkworm eggs, mulberry seeds or the knowledge of silk production outside Chinese territory. This monopoly held, with varying degrees of effectiveness, for several thousand years. The Roman world, which consumed Chinese silk in enormous quantities and paid for it in gold that drained the imperial treasury, had no knowledge of how the fabric was produced. Roman writers speculated that it was combed from the leaves of trees or woven from a particularly fine animal fleece. The actual process remained unknown in the West until the sixth century CE, when, according to the Byzantine historian Procopius, two monks succeeded in smuggling silkworm eggs out of China concealed in hollow walking staffs and delivered them to the Emperor Justinian in Constantinople.

The commercial significance of silk in the ancient and medieval world cannot be overstated. It was the primary luxury textile of the Roman, Byzantine, Persian and Islamic worlds, valued for its lustre, its lightness, its ability to take vivid dyes, and the social distinction it conferred on its wearer. In the Chinese imperial system, silk served simultaneously as a luxury commodity, a form of currency, a medium of diplomatic gift-giving and a marker of social rank. 

The Silk Road, whose name derives entirely from this single commodity, carried Chinese silk westward through Central Asia to the Mediterranean world across a network of overland and maritime routes that also transported Buddhism, Islam, papermaking, gunpowder and a vast range of other goods and ideas in multiple directions. 

The silk-producing regions of Jiangsu and Zhejiang provinces — particularly the cities of Suzhou, Hangzhou and Huzhou — maintained their position as the world’s primary silk production centres well into the modern period, and the craft traditions associated with Suzhou embroidery and Hangzhou woven silk were designated UNESCO intangible cultural heritage in recognition of their historical depth and technical sophistication.

The contemporary Chinese silk industry operates in a radically different commercial environment from any previous period in its history. Synthetic fibres have displaced silk across most of its historical applications, and the labour costs associated with sericulture and hand-weaving make traditional silk production economically uncompetitive in mass market contexts. China remains the world’s largest producer and exporter of silk, but the industry is concentrated in a smaller number of specialised producers serving luxury and heritage markets rather than the broad commercial market that sustained it historically. 

Some Chinese language teaching institutions like GoEast Mandarin in Shanghai incorporate silk’s cultural and historical significance into their broader curriculum; the vocabulary of silk production, weaving and textile culture runs deeply through classical Chinese poetry and prose, and cultural literacy in this area is, for the serious student of the language, a practical rather than decorative acquisition.