“互联网 +”行动计划推出5年来，新一代信息技术创新进一步加快，经济社会数字化转型呈现诸多新特征，这就要求深入研究构建转型新体系和探索转型新路径，谋划“互联网 +”行动举措演进升级。本文遵循技术产业变革的客观规律，基于技术经济理论范式，着重分析了当前技术、应用和政策等层面数字化转型新态势和转型前沿实践探索。研究表明，当前数字化转型技术体系和技术能力日益完善，新的转型目标蓝图逐步显现，信息技术和实体经济融合进入新阶段，面临着重构数字化转型框架体系，强化转型关键要素、突破转型关键环节的重要任务。对此建议，在“互联网 +”行动后续政策设计、国家“十四五”规划制定的过程中，发掘数字化要素潜力，推动数字化转型生态建设，构建转型创新网络，升级“互联网 +”政策保障体系，推动经济社会数字化转型迈向更高发展水平。

Since the Internet Plus initiative was proposed five years ago, innovations associated with the new-generation information technology have accelerated and digital transformation of the economy and society has exhibited many new features. These necessitate the construction of a new system and exploration of new paths for the transformation, and measures currently taken under the Internet Plus initiative need to be evolved and upgraded. This study follows the objective laws of technological industry transformation and is based on the theoretical paradigm of technology economics. It analyzes the new trend and research frontiers of digital transformation at the technology, application, and policy levels. The study reveals that the current technology system and technological capabilities of digital transformation have gradually improved, a new blueprint for the transformation has emerged, and the integration of information technology with the real economy has entered a new stage. However, the digital transformation framework system needs to be reconstructed, the key elements of transformation needs to be strengthened, and key breakthroughs need to be achieved. To this end, in the follow-up policy design of the Internet Plus initiative and during the formulation of the 14th Five-Year Plan, China should focus on exploring the potentials of digital elements, promote the construction of the digital transformation ecology, establish transformation and innovation networks, and upgrade the policy support system for the Internet Plus initiative, thereby promoting the digital transformation of economy and society to a higher level.