Foreign direct investment (FDI) is one of the key factors in technology transfer and increasing economic productivity in developing countries, especially OPEC member countries. Given the high dependence of these countries on oil and the limitations in financial and technological resources, it is of particular importance to examine the impact of foreign direct investment spillovers on knowledge-based economy variables. Technology transfer, innovation, and development of human and technological infrastructure are among the most important benefits of foreign direct investment. However, political and economic challenges, lack of transparency in legal structures, and weak institutional infrastructure may prevent the full exploitation of these investments in OPEC member countries. This study aims to examine the impact of foreign direct investment (FDI) spillovers on indicators of good governance and development of knowledge-based economy in OPEC member countries. The theoretical foundations of the study emphasize the importance of foreign direct investment in technology transfer, innovation, and improvement of governance indicators. Given the dependence of OPEC countries on oil resources and the need for sustainable development, the impact of FDI on indicators such as good governance, human resource training, innovation, and technological infrastructure has been analyzed. The data of this study were collected in a panel form from OPEC member countries during the years 2009 to 2023 and analyzed using the generalized method of moments (GMM). This method, with its ability to handle time lags and simultaneity issues, was the most appropriate approach for this study. The results show that foreign direct investment in non-oil sectors significantly improves governance indicators and strengthens technological infrastructure in the countries under study. In particular, the good governance index improved by 2.7 percent, and investment in the oil sector had more limited effects due