In the realm of cancer therapy, nanoparticles have emerged as a pioneering avenue, ushering in a remarkable journey filled with breakthroughs and innovations. This abstract encapsulates the multifaceted role of nanoparticles in cancer therapy, covering key aspects including their mechanics, influence on cell signaling, and the significance of various types of nanoparticles such as carbon-based nanoparticles, metal-organic framework (MOF) nanoparticles, and covalent-organic framework (COF) nanoparticles in the context of cancer treatment. Nanoparticles, due to their unique physicochemical properties, have revolutionized drug delivery systems. By altering particle size, surface properties, and drug encapsulation strategies, nanoparticles offer precise control over drug release, increasing therapeutic efficacy while minimizing systemic toxicity. Their ability to selectively target cancer cells has ushered in a new era of personalized medicine, enhancing treatment outcomes. Furthermore, nanoparticles play a pivotal role in modulating cellular signaling pathways. They can interfere with oncogenic signaling cascades, promoting apoptosis and inhibiting tumor growth. Carbon-based nanoparticles, known for their versatility and biocompatibility, have demonstrated immense potential in drug delivery and imaging. Metal-organic framework (MOF) nanoparticles and covalent-organic framework (COF) nanoparticles have emerged as promising candidates for cancer therapy due to their tunable pore sizes and high drug-loading capacities. This abstract provides a glimpse into the dynamic landscape of nanoparticles in cancer therapy, showcasing their transformative potential in drug delivery, cell signaling modulation, and the diverse range of nanoparticle platforms that hold promise for improving cancer treatment outcomes. As research in this field continues to evolve, nanoparticles are poised to play an increasingly central role in the fight against cancer.