Abstract: Nowadays, green technology with the characteristics of high efficiency, low carbon and recycling is not only the inevitable choice for the development of human society, but also the key to the high-quality development of resource-based enterprises. However, it needs the support of corresponding innovation environment and factor supply, and the digital environment gradually formed by relying on technologies such as big data provides it with an unprecedented opportunity. Digitization is becoming the leading force driving innovation and transformation. With the acceleration of the construction of Digital China, can digitalization effectively promote the green technology innovation of traditional resource-based enterprises, break through the dual constraints of resources and environment and embark on the road of high-quality development? Accelerating digital development has become a general trend. How Chinese resource-based enterprises take advantage of the trend to catch the fast train of digital development and quickly integrate into the new environment of digital development is directly related to their own high-quality development level. From the perspective of technology integration capability. Based on the sample of A-share resource-based listed companies in Shanghai and Shenzhen from 2016 to 2019, this paper empirically tests the impact and internal mechanism of digital comprehensive level and its five sub indicators on green technology innovation of resource-based enterprises. The five sub indicators are: Digital foundation, digital input, digital literacy, digital economy and digital application. This paper constructs the digital level measurement index system by using the coefficient of variation method. And comprehensively measure the digital level of 30 provinces in China. And the empirical results are obtained by using stata15.1 software. It is found that the comprehensive level of regional digitization has a significant "∩" impact on the green technology innovation of resource-based enterprises. Among the five first level indicators of digital level, four sub indicators such as digital foundation, digital input, digital economy and digital application have a significant "∩" impact on the green technology innovation of resource-based enterprises in the jurisdiction. However, digital literacy has no significant impact on the "∩" of green technology innovation of resource-based enterprises in the jurisdiction. That is, there is an appropriate level of digitization in the above different dimensions, and excessive investment is not conducive to promoting green technology innovation of resource-based enterprises. Technology integration ability positively regulates the impact of regional digital comprehensive level on green technology innovation of resource-based enterprises. Technology integration ability positively regulates the impact of digital foundation, digital input, digital literacy, digital economy and digital application on green technology innovation of resource-based enterprises in the jurisdiction. The results show that in resource-based enterprises, the regional digital level only provides the basis of technical resources for enterprises. Only through the internal technology integration can we give full play to the value of different technology combinations, which is helpful for enterprises to carry out green technology innovation. In short, accelerating the improvement of regional digital level and enhancing the ability of enterprise technology integration are of great significance to promote green technology innovation of resource-based enterprises, so as to realize high-quality development guided by ecological priority and green development.