This review research paper aims to explore the relationship between investor sentiment and stock market volatility from a behavioral finance perspective. By examining the impact of investor sentiment on market fluctuations, this study seeks to enhance our understanding of the underlying psychological factors that drive stock market movements. The paper is grounded in the framework of behavioral finance, which integrates psychological insights into traditional economic models. It draws on theories such as prospect theory, herding behavior, and the availability heuristic to explain how investor sentiment influences stock market volatility. The paper conducts a comprehensive literature review, analyzing and synthesizing existing empirical studies that investigate the relationship between investor sentiment and stock market volatility