This study aims to determine the effect of infrastructure development in the health sector, education sector and the agricultural sector on investment in Padangsidimpuan Regency in 2016-29020. The type of research used in this research is an eksplanatory study using a quantitative approach. The analysis technique used is multiple regression analysis, with secondary data. The data processed is data on the realization of infrastructure development in the health sector, education sector and agricultural sector as well as investment in 2016-2020 which were obtained from related agencies. The results of this study indicate that infrastructure development in the health sector has a negative but not significant effect on investment, infrastructure development in the education sector has a positive but not significant effect on investment and infrastructure development in the agricultural sector has a negative but not significant effect on investment.
