在分析数字经济驱动“两业”深度融合的作用机制基础上，选取2011-2020年粤港澳大湾区11个城市的面板数据，使用多元线性回归模型和中介效应模型，分析数字经济促进“两业”融合发展的效应。研究结果表明：第一，数字经济对大湾区“两业”融合具有显著促进作用，经异质性检验和稳健性检验后结论仍成立；第二，产生的效应具有区域差异性，相比较港澳两地和中心城市，数字经济对珠三角地区和外围城市“两业”融合的影响更大；第三，扩大市场需求从而引发质量变革是数字经济驱动“两业”深度融合主要路径，起着提升“两业”产品与服务质量的作用。因此，粤港澳大湾区需要从实施动态化和差异化的数字经济发展策略、建立数字经济与产业融合协同发展机制以及加快推进数字经济效率变革、动力变革、质量变革的进程等方面促进“两业”深度融合发展。

Based on the basis of analyzing the effect mechanism of digital economy driving the deep integration of "two industries", the panel data of 11 cities in the Guangdong-Hong Kong-Macao Greater Bay Area from 2011 to 2020 were selected and used to analyze the effect and path of digital economy in promoting the integrated development of "two industries" using multiple linear regression models and intermediary effect model. The study found that: (1) The digital economy significantly promotes the integration of "two industries", and the conclusion is still valid after the heterogeneity test and robustness test; (2)The effects produced are regionally different，compared with Hong Kong, Macao and central cities, the Pearl River Delta region and peripheral cities is more affected by the digital economy; (3)Expanding market demand and causing quality change is the main path to drive the deep integration of the "two industries", and plays a role in improving the quality of products and services of the "two industries". Therefore, the Guangdong-Hong Kong-Macao Greater Bay Area needs to promote the deep integration development of the "two industries" by implementing dynamic and differentiated digital economy development strategies, establishing an industrial integration and coordinated development mechanism, and actively promoting the efficiency, power and quality change process of the digital economy.

国家社会科学基金项目“数字技术创新驱动现代服务业与先进制造业深度融合的机制研究”（21BJY144）