This study examines the contribution of human capital to Indonesia's productivity. The result of this study reveals a significant contribution of human capital as shown in the model which is using highest weighted of primary and secondary level of education. The most significant result found in the model using secondary level as the highest weighted of human capital. In contrast, there is no significant contribution of human capital using proportional weighted between education levels. This suggests that improvement in knowlege, adoption of technology and skill in the primary and secondary education meet the demand of industries in Indonesia. This study uses a time series regression to analyze data 1985-2010.