The management of food waste presents a significant challenge in modern society, where a substantial portion of edible resources is discarded, contributing to environmental pollution and resource depletion. In recent years, the valorization of food waste through bacterial biofilm has emerged as a promising strategy to address this issue. Bacterial biofilms, consisting of complex microbial communities adhering to surfaces, possess inherent capabilities to degrade organic matter efficiently. The study explores the potential of bacterial biofilms in the valorization of food waste, focusing on their ability to convert diverse food substrates into valuable products such as biofuels, enzymes, and biopolymers. Key factors influencing biofilm formation, substrate specificity, and metabolic pathways involved in food waste degradation are discussed. Moreover, the utilization of engineered biofilms and consortia to enhance the degradation efficiency and product yields is highlighted. The environmental implications, economic viability, and scalability of biofilm-based food waste valorization processes are considered. Additionally, the integration of Omics approaches enhances the understanding of the metabolic networks and genetic pathways involved in the valorization of food waste by bacterial biofilms, offering insights for optimizing bioprocesses and improving efficiency. Overall, this study highlights the importance of bacterial biofilms as a viable strategy for food waste valuation, providing guidance for future studies and useful applications in resource recovery and waste management.