The chapter details the emerging field of postbiotics and their potential impact on colorectal cancer (CRC). The fundamental concepts of postbiotics and their diverse health benefits have been explored to bridge the gap between microbiome science and oncology. It provides a comprehensive overview of colorectal cancer, its causes, symptoms, and risk factors. The crucial link between gut microbiota and CRC is explained, emphasizing the complex interplay between microbial communities and cancer progression. The literature underscores an in-depth analysis of postbiotics, their definitions, mechanisms, and therapeutic potential. Furthermore, the latest clinical research and trials are discussed to offer better insights into postbiotic interventions for CRC. The chapter concludes with future directions for postbiotic research and practical guidelines to integrate them into clinical practice, urging the necessity for continued exploration and innovation in this promising field. The chapter contents are essential for researchers, clinicians, and students investigating the association between microbiome science and cancer therapy.