The poultry industry faces ongoing challenges in improving egg quality to meet the growing demand for nutritious and secure meals. Recent progress in nanotechnology has brought about new methods to enhance various aspects of egg quality, including shell durability, yolk pigmentation, nutritional composition, and protection against microbial contamination. This chapter examines the function of nanoparticles (NPs) as additives in animal feed and their influence on the quality of eggs in chicken farming. Nanoparticles, such as nanoselenium, nanozinc, nanocalcium, and other nanominerals, have demonstrated promise in augmenting nutrient assimilation, fostering improved gastrointestinal well-being, and enhancing overall poultry health, consequently enhancing the quality of eggs. The nanoscale particles possess distinct characteristics that augment the bioavailability and effectiveness, resulting in enhanced nutrient absorption and improved physiological functioning in laying hens. This chapter examines the methods via which nanoparticles enhance egg quality, the many types of nanoparticles employed, their safety profile, and the potential advantages and drawbacks linked to their utilization in chicken feed. In addition, the chapter focuses on the latest research trends, difficulties, and future prospects of using nanotechnology in the poultry business to improve egg output and quality in a sustainable manner.