The research reviewed an overview of digital transformation globally and in the Arab world in general, based on internationally recognized indicators, showing the classifications of some countries in the world, as well as the rankings of advanced Arab countries in the field of digitization. It also reviewed the state of digital development in Egypt in particular; Based on several indicators, including the e-government index, e-participation index, and network readiness. This study also studied the relation between digital transformation, represented by the Network Readiness Index (NRI) and sustainable development in Egypt, represented by indicators (average per capita share of GDP at constant prices, life expectancy at birth, average per capita carbon emissions) using the modern scientific method (ARDL) Auto-Regressive Distributed Lag Model, where the results of the study indicated the existence of a co- integration between digital transformation and the economic dimension of sustainable development in the short term without The value of the correlation coefficient reached R² = %97 percent, and the results of the study confirmed the existence of a co- integration between digital transformation and sustainable development in its social aspect (life expectancy at birth) in both the short and long term, where the value of the correlation coefficient reached R² =% 99 percent. The results of the study also confirmed the existence of a co- integration between digital transformation and sustainable development in its environmental aspect (the average per capita share of total emissions). R² = 97%.