Big Data has emerged as a transformative force in the field of management finance, enabling organizations to make data-driven decisions, enhance financial performance, and manage risks effectively. This research paper explores the role of Big Data in financial management and highlights its impact on decision-making, forecasting, and strategic planning. The study examines how advanced analytics, machine learning, and data mining techniques are reshaping financial practices. It also discusses the challenges associated with Big Data adoption, including data security, privacy concerns, and technological complexity. The paper concludes that Big Data is a critical tool for modern financial management, offering significant opportunities for innovation and competitive advantage.