A speech control method, for a terminal device, includes: receiving an input speech control instruction, obtaining a recognition result of the speech control instruction; searching for an execution object matching the recognition result step by step within a preset search range; and responding to the speech control instruction based on a search result; in which the preset search range at least includes any one of: a current interface of the terminal device when receiving the speech control instruction, at least one application currently running on the terminal device when receiving the speech control instruction, and a system of the terminal device.