Disclosed is a control method and control device for a working mode of a touch screen. The control method comprises: acquiring current touch operation data generated when a user operates a touch screen; performing logic judgment on whether to switch the working mode according to a current working mode of the touch screen and the touch operation data, and if yes, sending a switching signal to a touch screen control chip to enable the touch screen control chip to control and switch the working mode of the touch screen when receiving the switching signal. The operating intent of the user can be automatically identified according to the touch operation data and the current working mode of the touch screen, and the working mode of the touch screen is controlled to be switched to a corresponding mode, thereby the touch operation of the user is facilitated and the user experience optimized.