城市创新作为准公共产品，会受到政府间策略互动的影响。本文基于2010年—2019年我国246个地级市数据，运用空间计量模型和中介效应模型分析不同地方政府竞争模式对城市创新的影响与作用机理。研究发现：总体看，以单一GDP为发展标的的地方政府竞争模式不利于本地城市创新，并对周边城市创新有负向空间溢出效应；以科技创新为发展标的的地方政府竞争模式有利于本地城市创新，并对周边城市创新有正向空间溢出效应。分区域看，东部地区地方政府经济竞争对城市创新有正向影响但不显著，西部地区地方政府创新竞争对城市创新有负向空间溢出效应；分时期看，地方政府创新竞争对城市创新的促进作用在2014年—2019年间更加明显；分城市等级看，省会城市和副省级城市的地方政府竞争对城市创新影响更大。进一步研究发现，不同地方政府竞争模式会通过影响产业结构水平、人力资本水平和对外开放水平对城市创新产生不同影响。今后可通过完善财政分权体制、重视地方政府竞争示范效应、强调以科技创新为发展标的、鼓励城市之间创新合作等措施，促进城市创新水平整体提升。

Urban innovation, as a quasi-public good, is influenced by the interaction of intergovernmental strategies. Based on the data of 246 prefecture-level cities from 2009 to 2019, this paper analyzes the impact and internal mechanism of different local government competition models on urban innovation by using spatial econometric model and intermediary effect. The results show that, overall, the local government competition model with single GDP as the development target is not conducive to the improvement of the innovation level of local cities, and has a negative spatial spillover impact on surrounding cities; the local government competition model with scientific and technological innovation as the development target is conducive to local urban innovation and has a positive spatial spillover impact on surrounding cities. From a sub-regional perspective, the economic competition of local governments in the eastern region has a positive but not significant impact on urban innovation, and the innovation competition of local governments in the western region has a negative spatial spillover impact; in terms of periods, the role of local government innovation competition in promoting urban innovation is more obvious in 2014-2019; in terms of the urban hierarchy, local government competition in provincial capital cities and sub-provincial cities has a greater impact on urban innovation. Further research has found that different local government competition models will have different impacts on urban innovation by affecting industrial structure, human capital and opening up to the outside world. Measures such as emphasizing the demonstration effect of local competition and coordinating innovation cooperation between regions can be adopted to promote the overall improvement of urban innovation level.