Abstract. Introduction. Islamic finance can play an important role in encouraging economic growth in Indonesia, namely by financing the real sectors. The role of Islamic banking in providing capital assistance for real sectors is one of the locomotives of economic growth in Indonesia. This research will focus on financing strategic sectors to support the development of a higher and more competitive economy. So that it is known which sectors have played a major role in boosting Indonesia’s economic growth. The sectors to be studied are agriculture, mining, construction, industry, electricity, gas and water in Islamic banking. This study uses descriptive and quantitative analysis using Eviews 9 to simplify data calculations and estimation and using time series data with Ordinary Least Square Approach. Purpose. This research is conducted to investigate the impact of Islamic bank financing on agriculturer sector, mining, industry, electricity, gas and water supply and Construction sector to Indonesia economic growth over the period 2011Q1 -2019Q4. Results. Based on the results of data processing, it is known that Islamic banking financing in the agricultural sector, mining, electricity, gas and water and conctruction sector has a positive effect on economic growth. Meanwhile industrial sector in Islamic banking does not have a significant effect on economic growth. An increase in industrial sector financing by 1 percent is able to reduce GDP by 0.46940 percent. Conclusion: This estimation shows R-Square value is 98 percent influenced by variable financing in the agricultural sector, mining sector, industrial sector, electricity sector, gas and water and the construction sector, while the remaining 2 percent is influenced by other variables outside the model. The agriculture, mining, electricity, gas & water and construction sectors have a positive influence on economic growth. Meanwhile, the industrial sector has a negative influence on economic growth. Keywords: economic growth; Islamic banking; sectoral financing; Ordinary Least Square.