A touch control method of a capacitive and electromagnetic dual-mode touch screen and handheld electronic device are disclosed. The method includes receiving a touch instruction generated on the touch screen; judging whether the touch instruction is a capacitive induction instruction or an electromagnetic induction instruction; processing the touch instruction according to a handwriting input mode if the touch instruction is a capacitive induction instruction, or processing the touch instruction according to a touch control mode if the touch instruction is an electromagnetic induction instruction. By the above method, the invention can fulfill the demand for presenting original handwriting by a user, as well as the requirement for a simple and convenient operation.