As an important national strategy, civil-military integration is now in a critical period from primary integration to deep integration. For the sake of the Deep Development of Civil-Military Integration, China urgently needs to establish a sound legal system to play a normative and guaranteed role. This paper aims at the legal obstacles such as lack of top-level legal system, Legislative gaps, Lag of legal system and imperfect dispute resolution mechanism in the process of deep development of military and civilian integration in China. It is proposed to build a legal guarantee mechanism for this national strategy. That is, to promulgate the law on promoting civil-military integration, improve the legal level, strengthen special legislation, and establish a dispute settlement mechanism for civil-military integration to achieve its comprehensive, multi-field and efficient development model [1].