Mobile terminal-based methods of controlling smart home appliances, and associated mobile terminals and accessories are disclosed. The method includes: receiving, at a mobile terminal, current state information of a user, the state information being determined by an accessory of the mobile terminal based on its monitored user's sign parameters or environmental parameters in combination with correspondences between the user sign parameters or environmental parameters and states of the user; obtaining an operating mode of at least one smart home appliance; determining whether the operating mode of the at least one smart home appliance matches with the current user state; and adjusting the operating mode of the at least one smart home appliance to a corresponding operating mode of the current user state, if the operating mode of the at least one smart home appliance doesn't match with the current user state.