Embodiments of the invention disclose a sleep play duration setting method and a terminal device. The method comprises: detecting a touch pressure value for any target position of a time setting bar displayed in a terminal device in a sleep play mode, wherein the time setting bar comprises a slider; and when the touch pressure value is greater than a preset threshold, controlling, according to a correspondence between the touch pressure value and a moving speed, the slider to move along a preset direction on the time setting bar at the moving speed corresponding to the pressure value until the touch pressure value is less than or equal to the preset threshold, and when the touch pressure value is less than or equal to the preset threshold, controlling the slider to stop moving, wherein when the slider stops moving, duration corresponding to a position of the slider on the time setting bar is sleep play duration. Implementation of the method and terminal device provided by the embodiments of the invention is capable of quickly setting the sleep play duration.