摘要:洪武时期,面对倭寇等海上威胁,朱元璋着意加强沿海防御,环渤海地区海防体系初步建立。永乐迁都后,环渤海地区海防逐步发展起来,并在有明一代经历了加强、衰落、再度强化、调整的过程。总体来说,明代环渤海地区的海防建设,抓住了海防建设的重心,建立起完备的海防体系,维护了海疆的安宁,并促进了环渤海地区的开发。但是,由于缺乏先进的海洋意识,导致海防建设缺乏连续性,当海上形势危急时便加强海防,当形势平和时便不再关注海防。这些经验和教训均值得我们认真反思。%In Hongwu period of Ming dynasty,faced to the invading of Japanese pirates,Zhu Yuanzhang delib-erately strengthened the defence force of coastal areas. During this period,the system of coastal defense force of Bohai rim area was established preliminarily. After Zhudi's moving capital to Beijing,the coastal defense force of Bohai rim area gradually developed,and experienced a course of strengthening,declining,strengthening renewedly and adjustment in Ming dynasty. In general,the construction of the coastal defense force of Bohai rim area grasped the gravity center of coastal defense,established a perfect system of coastal defense,maintained the peace of sea, and promoted the development of Bohai rim area. However,because of the deficiency of advanced ocean conscious-ness,the construction of the Bohai rim's coastal defense was lack of continuity. So,when the situation of sea was tight,the government strengthened coastal defense,while as the situation of sea became calm,the government ig-nored it. It is worthy to summarize the experiences and lessons in the process of Bohai rim area's coastal defense system construction.