中文摘要：

本文借鉴A—J模型，研究后发大国技术创新方式和领域选择。研究发现：企业的技术创新方式取决于基础研究领域的创新成本系数和知识产权保护力度，当这个系数处于合适的领域内企业倾向于合作创新，此时当企业间溢出效应比较大时倾向于投资应用领域，相对比较小时倾向于基础研究领域；当这个系数比较小时企业都倾向于自主创新，且集中在基础研究领域；当这个系数相对比较大时企业愿意采取自主创新方式，且倾向于在基础研究领域投资。这就要求国家结合不同情况进行分类指导。

英文摘要：

Based on the classic A-J model, the paper studied the technical innovation field and the technical innovation model in the later developing countries. The technical innovation model of the developing countries＇ enterprises depends on cost coefficient in the basic re- search innovation and the protection of the intellectual property rights. When the coefficient is in a suitable range, the enterprises tend to adopt the cooperation innovative model. When the spillover effect between the enterprises is relatively large, the enterprises tend to invest in the application research field; when the technical spillover effect between the enterprises is relatively small, the enterprises tend to in- vest in the basic research field ; and when the coefficient is small, the enterprises tend to carry out the independent innovation, and focus on the basic research field ; and when the coefficient is relatively large, the enterprise is willing to take the independent innovation mode, and invests in the basic research field. The conclusions offer that the country should carry out the classification of different enterprises ac- cording to the different industries, market structure, the ability.