As a region with a relatively high and sustainable economic growth, Indonesia is transfor-ming into an industrial and service country. This has prompted a shift in the concentration of economic activity and manpower, from the agricultural sector to the non-agricultural sector, both industry and services. In contrast to a number of previous studies which focused more on analyzing patterns of structural change and their impact on poverty and sectoral inequality, this research places more emphasis on discussing the achievement of Lewis turning point conditions, which is one of the important theses within the framework of structural transfor-mation analysis, as formulated by Lewis (1954). As a result, it is known that Indonesia has not yet reached the Lewis Turning Point stage as a result of the process of structural change. Indonesia almost reached the Lewis turning point in the 1990s, which is considered the peak of industrialization and the take-off period, with an average agricultural surplus ratio of