The modernization of tax collection and administration system is an important part of the modernization of national governance capabilities. Yet the "Internet +" provides opportunities for the reform of tax collection and administration system. Nowadays, Chinese tax collection and administration system is facing with both internal and external challenges including slowing economic growth, structural shifts in the economy, the development of e-commerce and internet currency, and internal organizational innovation. In this regard, the reform should be followed: devote to enhancing modern tax management capabilities, design with a dynamic vision, grasp technical dividend carefully, and reform both in system level and technology level. Specifically, the reform should be guided by "pain points", reshape the organizational structure, optimize staffing, improve tax collection and administration legislation and enforcement, use the "blockchain technology" to reshape the core collection and administration processes, and use artificial intelligence at multiple levels to promote the collection and administration capabilities, help the transformation of tax intermediary.