Smart door locks have high requirements for products. Designers go through sufficient market research according to the needs of users to find the highlights of the design and the needs of consumers. In the design process, it is not only necessary to consider the appearance design, structural design, material, man-machine, and technology, but also the safety and convenience of the intelligent door lock. The creative inspiration of the intelligent door lock comes from "Fu Lin Men". The Chinese national culture originated in the north and has a strong cultural atmosphere. The appearance design of the intelligent door lock is simple and atmospheric, and the shape is unique and novel. Metal materials are selected and engraved with unique classic patterns. There are two different patterns on the intelligent door handle. The top protruding pattern part is the battery module, and the corner pattern position is the sound outlet. There are two different buttons under the intelligent door handle, which can be rotated. Compared with ordinary mechanical locks, smart door locks are safer and more convenient. They can be unlocked not only by passwords but also by fingerprints. The smart door lock has an anti-theft alarm function. The user can choose whether to turn on the anti-theft alarm function. If someone continuously enters the wrong password or wants to unlock the smart door lock by improper means while turning on the anti-theft alarm function, the smart door lock will start the anti-theft alarm function, to ensure the safety of the family.