a display method that is used for a security device installed with a camera module and a display module includes a . when the security device captured a preset image by the camera module , the security device displaying an interface for entering a password by the display module , and b . when the password is successfully matched , the security device displaying a predetermined object by the display module . by hiding the interface for entering a password , the invention improves the security capability of the device and meets the requirement of information security at present .