Engineering digitization and the new generation of management informatization are referred to as "two-izations" of engineering. At present, there is much discussion about engineering digitization, but it is the first time to put forward the new generation of management informatization. Moreover, the popularity of BIM, GIS, ICT, IOT and other related contents further confuses the concepts of engineering management informatization and engineering digitization.The development of any theory cannot be separated from the definition and explanation of concepts.We first need to understand the meaning of the concepts of engineering and management, digitization and informatization, and the difference between engineering digitization and management informatization, so as to recognize and practice the transformation and upgrading of engineering construction under the new technology.From the perspective of engineering, management, digitalization and informatization, this paper constructs a new generation of management informatization theory with the understanding of engineering digitalization as the core. Combined with relevant practical experience, this paper analyzes the new generation of management informatization.Finally, based on the new generation of management informatization based on engineering digitalization, it looks forward to the future of the industry from the aspects of intelligent management, modernization of industry governance, and digital management of big government, big group and big organization.