Strengthening of the Ming Maritime Ban (1470s)

Timeline

1. 1471–1474Beijing · BeijingIn the early Chenghua reign, the Ming court continued the maritime ban tradition dating from the Hongwu era, prohibiting private construction of large ships and unauthorized overseas trading. Around 1474, the court again strictly enforced the maritime ban regulations, stipulating that only tribute-ship envoys could trade at designated ports (such as Quanzhou and Guangzhou), and banning the construction of any private vessel with 'two or more masts.' The policy aimed to deter wokou, smuggling, and coastal rebellion.
2. 1474–1478Coasts of Zhejiang and Fujian · Fujian ProvinceAfter the maritime ban was strengthened, some maritime merchants turned to smuggling or fled overseas, mingling with wokou forces. The Ming court ordered coastal commanders and governors to strengthen patrols and coastal defenses, searching for and arresting vessels that violated the ban. Wokou troubles in the 1470s were not yet as severe as in the Jiajing era, but smuggling trade had already formed underground networks along the southeast coast, laying the groundwork for later debates over opening the seas.
3. 1476–1480Guangzhou · GuangzhouAgainst the backdrop of the maritime ban, official tributary trade became the main channel for legitimate overseas exchange. Envoys from Malacca, Champa, Siam, and other states entered through the Maritime Trade Supervisorates to present tribute and trade, earning substantial profits. Private maritime merchants either attached themselves to tribute missions or risked smuggling, elevating the status of Southeast Asian ports (such as Malacca) as trade intermediaries. By 1480, the maritime ban and the tributary system together shaped the late-15th-century East Asian maritime order.