This study examines the relationship between financial sector development and economic growth in DR Congo (DRC). Indeed, well-functioning financial markets are a key factor in achieving high economic growth, while inefficient financial markets are one of the reasons many countries around the world romain desperately poor. Hence, the development of the financial sector can drive economic growth. The main objective of this work is therefore to determine the influence of the financial system on economic growth in the DRC). By conducting this study, we specifically want to verify whether financial development indicators are significantly related to the growth of the Gross Domestic Product (GDP) in the DRC. The econometric analysis is based on a general linear model, and the data used for this analysis come mainly from the World Bank and the Central Bank of Congo. The results obtained show that the savings rate has a positive and significant impact on economic growth in the DRC; the interest rate also influences economic growth but in a negative way. These results show that the development of the financial sector promotes growth in the DRC.