Shenzhen Public Security Pavilion is a police hoarding equipment designed for Shenzhen Public Security Bureau. In the early stage, we analyzed and studied the design characteristics and use environment of the existing public security pavilion. With black as the main keynote, it highlights the majesty and solemnity of public security. The modeling conforms to modern aesthetic concepts and material requirements. It is simple and generous. The modular design is convenient for disassembly, assembly and transportation. This product should not only conform to the modern aesthetic trend in appearance, but also highlight the majesty of police products. Modular sheet metal is combined with modern simple style, and the transition is made with round chamfers to add temperature and flexibility to the cold sheet. Solemn black plays a warning role. The overall design is systematically deployed from form to meaning, from inside to outside. The product shows from form to artistic conception, from artistic conception to charm, and then to the height of human nature.