The Southeast Naval Force in the Ming Dynasty , with its distinguishing feature of the times on its disposition and patrolling, was founded to safeguard countrys maritime rights. In fighting against Japanese pirates and resisting Western colonialists, the Southeast Naval Force had defended our country s maritime rights. Zheng Chenggongs navy was the armed forces in upholding trade on the sea, and the recapturing of Taiwan was a great event of safeguarding states maritime rights. The organizational system and professional nature of the Southeast Naval Force were becoming perfected in the Qing Dynasty, with its definite purpose of guarding against external enemies and safeguarding maritime rights. And ,the modern navy had taken defending states maritime rights as the principal aim of arm building. In fact, the naval forces in Ming Dynasty and Qing Dynasty, which both played an important role in defending countrys maritime rights, were the outgrowth of the development of Chinese maritime rights consciousness.