ABSTRAKUsing panel data from 42 developing countries in the year 1965-2010, this paper attempts to explain the impact of human capital (education) on economic growth under the endogenous growth theory. following the human capital and distance to frontier (DTF) growth model developed by Vandenbussche et al. (2006), henceforth VAM, human capital was defined as a weighted sum years of schooling, the proportion of educational attainment, and the fraction of skilled human capital. another two new definitions were proposed to articulate the importance of education structure, i.e. the relative share of educational attainment and continuing rate in tertiary education. A system generalised method of moments (GMM) estimation was undertaken, and the results show that the two proposed definitions of education are significant at least at 90 percent of confidence level on the total factor productivity (TFP) growth. hence, it is suggested that education structure matters for growth in developing countries.