An apparatus for guiding a maintenance individual to perform a safety checking operation on a functional component (160, 141, 142) of an elevator system (10; 40), comprising: a wireless signal component connected with an elevator controller of the elevator system (10; 40) and establishing a wireless communication connection with a mobile terminal carried by the maintenance individual to enter an elevator hoistway for maintenance operation by broadcasting a wireless signal; wherein the apparatus is configured to perform an information interaction about the functional component (160, 141, 142) by a wireless communication module of the mobile terminal and the elevator controller, and to provide safety checking guidance information for guiding the maintenance individual to complete the safety checking operation by a safety checking guidance module of the mobile terminal, wherein the safety checking guidance information provided includes first safety checking guidance information and second safety checking guidance information,; the elevator controller comprising: an information acquisition module for acquiring, in response to a state switching operation on the functional component, first information for determining whether the functional component passes a corresponding safety checking operation in real time; the apparatus is further configured to perform the following actions by the safety checking guidance module of the mobile terminal: generating the first safety checking guidance information for guiding the maintenance individual to perform the state switching operation on the functional component (160, 141, 142), and characterized by the safety checking guidance module of the mobile terminal generating, based on the first information, the second safety checking guidance information indicating whether the functional component passes the safety checking operation, and by the information interaction including an interaction of the first information. a wireless signal component connected with an elevator controller of the elevator system (10; 40) and establishing a wireless communication connection with a mobile terminal carried by the maintenance individual to enter an elevator hoistway for maintenance operation by broadcasting a wireless signal; wherein the apparatus is configured to perform an information interaction about the functional component (160, 141, 142) by a wireless communication module of the mobile terminal and the elevator controller, and to provide safety checking guidance information for guiding the maintenance individual to complete the safety checking operation by a safety checking guidance module of the mobile terminal, wherein the safety checking guidance information provided includes first safety checking guidance information and second safety checking guidance information,; the elevator controller comprising: an information acquisition module for acquiring, in response to a state switching operation on the functional component, first information for determining whether the functional component passes a corresponding safety checking operation in real time; the apparatus is further configured to perform the following actions by the safety checking guidance module of the mobile terminal: generating the first safety checking guidance information for guiding the maintenance individual to perform the state switching operation on the functional component (160, 141, 142), and characterized by the safety checking guidance module of the mobile terminal generating, based on the first information, the second safety checking guidance information indicating whether the functional component passes the safety checking operation, and by the information interaction including an interaction of the first information. generating the first safety checking guidance information for guiding the maintenance individual to perform the state switching operation on the functional component (160, 141, 142), and characterized by the safety checking guidance module of the mobile terminal generating, based on the first information, the second safety checking guidance information indicating whether the functional component passes the safety checking operation, and by the information interaction including an interaction of the first information.