The present disclosure relates to a method and an apparatus for controlling a smart device. The method includes: when a screen of the terminal is locked and it is determined that a user performs a first preset operation on a control key on the lock screen of the terminal, acquiring information regarding at least one smart device through a preset smart-home Internet-of-Things (IoT) protocol and displaying the acquired information on a control interface of the terminal; and when it is detected that the user performs a second preset operation related to a smart device displayed on the control interface, controlling, according to the second preset operation, the smart device through the smart-home IoT protocol.