Three-proof walkie-talkie provides one-stop service from product appearance design and structural design to mold opening injection molding, prototype production and small batch production. On the basis of market research and analysis, combined with customer needs, through competition analysis, brainstorming, sketching and other in-depth exploration of user needs and product creativity. Simple shape, tough lines, modern appearance design for commercial built-in antenna, simple snap-on back clip, light and compact, business fashion, giving people a professional sense of security and science and technology belonging to professional interphone product design. According to the appearance design scheme of commercial digital walkie-talkie, combined with the functional characteristics and requirements of the product, the structural design of the product is carried out. The body is compact, sealed structure, stable performance, superior function, easy to carry, and can meet the needs of different working people in different industries. On the basis of meeting the functional needs of the product, coordinate the aesthetic needs of the product appearance to achieve the unity of internal and external. The model design of the product makes a functional prototype according to the model scheme. After that, it is necessary to debug the function of the prototype, test the performance parameters of all aspects of the product, find the problems in the test in time, and constantly modify and optimize to ensure the quality of the product and meet the national industry standards. Finally, after the plan is determined to be correct, small batch production can be carried out, and the market response of the product can be timely, and the production schedule can be adjusted. The design and development of the three-defense walkie-talkie is a complex and rigorous process, involving many details. It also tests the design capabilities, cross-border innovation capabilities, supply chain and manufacturing capabilities of industrial design companies. It is necessary to do a good job from design to manufacturing. Every detail of the work, which link has problems, will affect the progress of the overall project and the ultimate success or failure.