Secure communication method and device, electronic equipment and storage medium

The invention provides a secure communication method and device, electronic equipment and a storage medium, when a cloud side receives an equipment registration request sent by a terminal, the cloud side verifies the terminal, after the terminal passes the verification, the cloud side sends an equipment identifier to the terminal, the terminal carries out combined encryption on original data according to the received equipment identifier, and the encrypted data is sent to the terminal. Obtaining encrypted data, and sending the encrypted data to a cloud; and the cloud end carries out segmented decryption on the received encrypted data to obtain original data, and safety communication between the cloud end and the terminal is completed. The verification of the cloud to the terminal during equipment registration is the first layer of security protection in the communication process; and then combined encryption is performed at the terminal as second-layer security protection for the communication process, and fi