Title: The effects of public debt, corruption on economic growth in countries in the world Abstract: Nowadays, loan borrowing has almost become an inevitable trend in the national financial structure of any country. However, the use of debt always exists duality, borrowing can create conditions to promote economic growth, but the more debt is, the more cost of debt will increase not only the benefits of borrowing disappear, but debt also creates a drag on a country’s economic growth. Furthermore, debt is often used to finance government expenditures and this can give rise to corruption. As based on the theories of economic growth, public debt and corruption, this study was conducted to re-examine the impact of public debt on economic growth, the relationship between public debt and economic growth, nonlinear relationship between public debt and economic growth, thereby determining the optimal debt threshold. In addition, the author also examines the effect of corruption on the impact of public debt on economic growth. This study uses the DGMM estimation method for data of three groups of countries in the period 2000-2019 and has solved the research questions posed including: (1) The relationship between public debt and economic growth is nonlinear with a debt threshold for High income countries (HICs) of 120%; Upper middle income countries (UMICs) is 93% and Low middle income countries (LMICs) is 67%; (2) Corruption has a negative impact on economic growth for UMICs and LMICs, but the opposite is true for HICs; (3) The impact of public debt on economic growth is a function of corruption, the positive effect of public debt decreases as the perceived level of corruption increases. This result is used as a reference for policy makers to fully exploit the benefits brought by the use of public debt and minimize the negatives arising from it. At the same time it is also a reference for scholars interested in this topic in the future.