South Korea's e-Government evolved from a response to administrative inefficiency during rapid economic growth into a globally recognized digital government model. This report traces the journey through two major phases: Foundation (1970s–2016) and Digital Transformation (2016–present). Korea ranked first in the UN E-Government Development Index in 2010, 2012, and 2014, and first in the OECD Digital Government Index in 2019. The nation's success rests on three pillars: integrated e-Government systems (G2G, G2B, G4C), visionary leadership sustained across four decades, and robust ICT, financial, and administrative infrastructure.