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The smart express box is a device based on the Internet of Things that can identify, temporarily store, monitor and manage (express) items. It forms an intelligent express box system together with the PC server. The PC server can perform unified management of various express boxes in the system (such as express box information, express mail information, user information, etc.). And comprehensively analyze and process various information. After the courier delivers the package to the designated location, he only needs to deposit it in the express mailbox, and the system will automatically send a short message to the user, including the pickup address and verification code. The user enters the verification code before the appropriate time to arrive at the terminal. Courier can be taken out. The product is designed to provide users with a convenient time and place to receive shipments.