国家数字化战略是指政府在数字化领域制定的规划和战略，旨在推动数字经济的发展、提升国家数字化水平和竞争力，促进社会信息化和数字化的全面推进。

在中国，国家数字化战略是由国务院主导制定，目前最新的数字化战略是《数字中国建设发展战略纲要》，该纲要于2018年5月发布，提出了三步走的目标：

第一步，到2020年，形成数字经济快速发展的良好态势，数字经济总规模达到6万亿元以上，数字经济比重占GDP的比重超过三分之一，数字经济引领传统产业数字化、网络化、智能化程度持续提升。

第二步，到2025年，数字经济规模进一步扩大，数字经济比重占GDP的比重超过50%，成为新一轮科技和产业革命的重要驱动力。

第三步，到2035年，数字经济在国民经济中的地位更加重要，形成数字化国家和数字化中国。

实现这一目标需要加强数字基础设施建设，促进数字技术创新，推进数字产业升级，加强数字化人才培养，落实数字安全保障措施等一系列措施。同时，还需要加强国际合作，促进数字经济的全球化发展。

翻译：

The national digital strategy refers to the planning and strategy formulated by the government in the field of digitalization, aiming to promote the development of the digital economy, improve the national digital level and competitiveness, and promote the comprehensive advancement of social informatization and digitalization.

In China, the national digital strategy is led by The State Council. And the latest digital strategy is the Outline of the Strategy for the Construction and Development of Digital China. Which was released in May 2018 and sets out three steps of objectives:

The first step is to form a good momentum for the rapid development of the digital economy by 2020, with the total scale of the digital economy reaching more than 6 trillion yuan. The proportion of the digital economy accounting for more than one-third of GDP. And the digital economy leading the digitalization, networking and intelligence of traditional industries continuing to improve.

In the second step, by 2025, the scale of the digital economy will be further expanded. And the proportion of the digital economy in GDP will exceed 50%, becoming an important driving force for a new round of technological and industrial revolution.

The third step is that by 2035, the digital economy will play a more important role in the national economy and form a digital country and a digital China.

To achieve this goal, we need to strengthen the construction of digital infrastructure, promote digital technology innovation, promote the upgrading of digital industries, strengthen the training of digital talents. And implement a series of measures such as digital security safeguards. At the same time, it is also necessary to strengthen international cooperation to promote the globalization of the digital economy.