中文摘要：

创新是新创企业创建和保持竞争优势的关键因素。新创企业内部创新方式如何相互作用以及外部关系网络如何协同演化，对于新创企业的生存和发展具有重要意义。因此，本文从新创企业生命周期动态演化的角度，深入剖析了创新方式的动态选择，并在此基础上拓展不同的关系网络强度。通过理论推演发现：创建期，新创企业会选择技术创新并拓展强关系网络；生存期，选择以技术创新为主并伴以组织制度创新和拓展弱关系网络；成长期，选择以组织制度创新为主并伴以技术创新，而将弱关系转为强关系网络。因而，新创企业要根据所处的阶段采取合适的创新方式以及关系网络的拓展，从而提升创新绩效。本文将有助于拓展创新理论，推进新创企业创新研究，并为新创企业成长提供理论参考。

英文摘要：

Innovation is a key factor in creating and maintaining competitive advantages for new ventures. How do innovation modes within a new venture interact with each other and how can external relationship networks co-evolve？ These issues are important for the survival and development of new ventures. Therefore, this paper analyzes the dynamic choice of the innovation modes in depth from the perspective of the dynamic evolution of the new enterprise life cycle, and on this basis, develops the strength of the different relationship networks. By theoretical deduction it comes to the following conclusions： during the creation period, the new ventures will choose the technical innovation and expand the strong relationship network; during the survival period, they choose technological innovation accompanied by organizational institution innovation, and expand the weak relationship networks; growth period, they choose organizational institution innovation accompanied by technology innovation, and transform weak relationship networks to strong relationship networks. Therefore, the new ventures should take appropriate innovative ways and develop the relationship networks in accordance with the stages, then to enhance innovation performance. This paper helps to expand the innovation theory, promote the innovation research of the new ventures, and provide the theoretical guidance for the new venture growth.