Abstract: Innovation leap mean the variability of firm's innovation behavior along the temporal dimension, representing the recognition of technological trajectories, exploration of technological opportunities in the future, and getting rid of the routine of technological development. On account of not enough attention paid to the antecedents of innovation leap in existing literature, this paper investigates the knowledge-base antecedents of innovation leap from the perspective of ambidextrous transition and technological knowledge system. Using the panel data of 489 enterprises in strategic emerging industries in China, this paper find: (1) the diversification of technological knowledge system has positive effects on innovation leap, and related diversification has greater effect than unrelated diversification;（2）the uniqueness of technological knowledge system and innovation leap shows inverted U-shaped relationship. This paper extending the studies of the antecedents of innovation leap and provides some implications for firms to construct suitable technological knowledge to explore the technological opportunities in the future.

摘要： 创新跳跃指的是企业创新行为在时间维度上的变动性，表征了企业识别未来的技术轨迹、探索未来的技术机会、摆脱现有的技术发展惯例。本文针对现有创新跳跃文献对前因关注不够的不足，基于双元转换视角，从技术知识系统及其属性的角度入手，探索创新跳跃的知识基础前因。基于489家新兴企业的研究发现，技术知识系统的多样性对创新跳跃有显著的正向影响，且相关多样性比不相关多样性的正向作用更大；技术知识系统的独特性与创新跳跃间呈倒U型关系。本文的研究拓展了"创新跳跃"前因的研究，也为企业构建合理的技术知识系统以探索未来的技术机会，提供了一定的启示。