Nanotechnology is transforming food packaging through advanced nanoparticle synthesis, offering innovative solutions for extending shelf life, enhancing safety, and improving packaging durability. This review explores how nanomaterials contribute to food preservation by detecting contamination, repairing packaging damage, and releasing preservatives. It also examines the benefits of intelligent packaging systems and addresses safety concerns and regulatory issues related to nanoparticle toxicity. The review highlights the impact of nanoparticles on packaging quality and traceability, while emphasizing the need for careful evaluation of their migration and interaction with polymer matrices. Finally, it provides an overview of commonly used nanoparticles in food packaging and available nano-based solutions.