Abstract: A method for maintaining equipment by remote operation and assistance, applied in an electronic device, obtains on-site information in response to a failure notification, and queries maintenance guidance information according to the on-site information. When the maintenance guidance information exists, the electronic device displays or plays the maintenance guidance information by Augmented Reality (AR) glasses, collects user operation data of a maintenance operation in real time, compares the user operation data with the maintenance guidance information, and prompts a user to correct a maintenance operation when a comparison indicates that a current repair or maintenance operation is erroneous. When the maintenance guidance information does not exist, the electronic device establishes a connection with a remote expert terminal by the AR glasses, and obtains real-time guidance from the remote expert terminal.