我国金融科技行业发展迅速，世纪初支付宝的诞生标志着金融科技在我国迎来快速发展的黄金时期；经历了十余年的高速发展后，我国金融科技的实力和应用落地在全球已处于头部梯队。金融科技为商业银行带来商业模式升级、合作模式多样化的全新机会，同时也为商业银行带来了外部冲击与挑战。信贷是商业银行商业模式的重点组成部分，因此，商业银行面临的关键风险之一就是信贷风险。基于金融科技快速发展的宏观行业现状，本研究通过构建商业银行金融科技应用及发展水平指数的方法，利用36家上市银行于2005-2019年间的公开财务数据以及基于40个金融科技关键词构建的金融科技应用指数数据，探索了商业银行金融科技应用水平及其信贷风险之间的关系，并探求了该关系与银行类型之间的异质性。考虑到商业银行的信贷风险具有持续性特征，本研究引入了动态面板数据模型，并出于解决模型内生性问题的角度出发，采用系统广义矩估计法为主要检验方法，并结合差分广义矩估计法进行对照检验。实证结果证明，商业银行的金融科技应用水平与其信贷风险管理能力呈现正相关性，商业银行提升金融科技的应用能够降低其面临的信贷风险水平，并且这种相关性具有异质性，对于非国有商业银行而言更加显著。文章利用不同的稳健性检验方法验证了上述结论的稳健性。研究认为，金融科技的应用对于商业银行信贷风险的影响机理包括事前风险暴露水平调整及风险传播抵御能力加强、事中风险管理能力赋能、事后损失控制能力提升以及负反馈调节三个方面。基于实证结果及研究结论，本文最终从微观和宏观两个视角提出了积极鼓励金融科技行业健康发展并引导合理应用落地、促进商业银行对金融科技的正确合理应用的建设性建议。微观和宏观两个方面的积极、正确应对，才能引导金融科技的健康发展，从而进一步实现金融科技对银行在商业模式、运营能力和风险管理等方面的全面赋能。

China's Fintech industry has been developing rapidly. The birth of Alipay at the beginning of the century marks a fast-growing period of rapid China Fintech development and expansion. After more than ten years of development, the technology and application of China's Fintech has reached the world-class level. Fintech brings new opportunities for commercial banks to upgrade their business models and diversify cooperation models. Whilst at the same time, the introduction of Fintech as well brings external shocks and challenges to commercial banks.Credit business is the core of commercial banking business model, and credit risk is also the core risk faced by commercial banks. Based on the rapid development of Fintech in the macro industry, the research explores the correlation between Fintech application level and credit risk of commercial banks through the method of constructing a commercial bank Fintech development and application index from 36 listed banks during 2005-2019. The study introduces the dynamic panel data model to describe the constancy of credit risks. Moreover, from the perspective of solving the endogeneity of the dynamic panel data model, the study combines two Generalized Methods of Moments to run the analysis. The heterogeneity of the correlation is as well explored through various perspectives.The empirical results prove that the level of Fintech application of commercial banks is positively correlated with their credit risk management capabilities, and that the correlation is heterogeneous: For non-state-owned commercial banks, we see a more significant correlation. The research concludes the mechanism of Fintech empowerment to commercial banks as enhanced capabilities in credit-related risk identification, risk exposure adjustment, risk management and loss retrieval.Based on the empirical results and research conclusions, this article finally puts forward constructive universal and specific suggestions to actively guide the organic development and application of the Fintech industry and to promote the reasonable application of Fintech by commercial banks from both the micro and macro perspectives.