国家安全生产具有外部性，包括外部经济性和外部不经济性。为克服外部不经济性，实现内在化，需要采取各种适当的方式：一是企业方式，即国防企业建立现代企业制度，在政府和企业之间建立隔离带，把企业的所有权和经营权分开，使企业成为独立经营、自负盈亏的法人主体。二是合同市场方式，即通过市场竞争，在供给方和需求方之间达成交易合同，明确双方的权利义务。这是多种方式中最基本、最重要的方式。三是项目纵向一体化方式。它是在合同市场方式的交易成本过高的情况下实行的一种方式，它能把市场交易方式转换为项目内部交易方式，以节约交易费用。四是政府调控方式。它是在项目方式的内部交易成本过高时采取的一种方式。它与传统的政府方式不同：它严格区分了政府、军队和企业的职权，是对合同方式、项目方式的补充，因而既不是指令性计划方式，也不是重要的交易方式 National security production has externalities, including external economy and external diseconomies. In order to overcome external diseconomies and achieve internalization, various appropriate measures need to be taken: First, the mode of enterprises means that the defense enterprises establish a modern enterprise system and establish a separation belt between the government and the enterprises so as to separate ownership and management of the enterprises , So that enterprises become independent, self-financing legal entity. Second, the contract market approach, that is, through market competition, the supply side and the demand side to reach a transaction contract, a clear rights and obligations of both parties. This is the most basic of the many ways, the most important way. Third, the vertical integration of the project. It is implemented in the case of contractual market transaction costs are too high, it can transform the market transactions into internal transactions within the project, in order to save transaction costs. Fourth, the government regulation and control. It is a way to take when project-based internal transaction costs are too high. It is different from the traditional government method: it strictly distinguishes the government, the military and the enterprise’s power. It supplements the contract method and the project method, so it is neither an order planning method nor an important transaction method