As the overseas extension of national interests, the traditional and non-traditional threats are growing with each passing day. Being an important safeguard power of national interests overseas security, Chinese security companies, in the background of the overseas-market needs and the lag of domestic legislation, takes on the “social responsibility” of protecting China’s interests overseas. The domestic legal regulation system must have a set of perfect system to fundamentally clear the supervision and administration of qualifications, business scope, principles, rights relief, activities rules, as well as the security specifications with guns and other special items, thus to build a “good soft environment” for overseas business development.