The article explores how financial intermediation has evolved into a key innovation in the financial sector, aiming to boost financial stability and economic growth. It outlines the stages of this evolution, the factors driving it, and the principles guiding its development. The integration of global financial markets and the adoption of innovative technologies have transformed financial intermediation into a vital sector of the economy, leading to significant changes in financial markets and positively impacting economic development. Key trends include the globalization of financial markets, the use of new financial instruments, and the rise of e-business systems and computer technologies in financial services.