This article comprehensively analyzes how to effectively extend the service life of layer cages to over 15 years through the scientific selection of Q235 steel and advanced hot - dip galvanizing and aluminum - zinc alloy coating technologies, combined with key daily maintenance measures. It systematically elaborates on the crucial impact of layer cage durability on breeding costs and operational stability, delves into the performance of materials and the pros and cons of anti - corrosion processes, and provides maintenance operation suggestions and real - life cases to help farmers improve return on investment and achieve long - term reliable operation of equipment. It is a practical guide that layer farm owners and industry technicians cannot miss.