The invention discloses a controller applicable to a gear-free touch control handheld type electronic device. The handheld type electronic device comprises a touch control outer cover, a panel, a controller and a
central processing unit. The touch control outer cover is provided with an outer cover body and a touch control sensing structure. The controller, the panel and the touch control sensing structure are in
signal connection with one another. The outer cover body is arranged on the other side, opposite to the panel, of the handheld type electronic device. The controller comprises a driving unit, a sensing unit and a
processing unit. The driving unit outputs a driving
signal to the touch control sensing structure. The sensing unit receives double-finger sliding from a single hand holding the handheld type electronic device. The
processing unit generates a selected
signal, generates a transmitting signal according to the double-finger sliding, and transmits the selected signal and the transmitting signal to the
central processing unit. The
central processing unit controls the panel to display selected data according to the selected signal, and transmits the selected data to a target electronic device according to the transmitting signal. By means of the gear-free touch control handheld type electronic device, fingers can be prevented from shielding the
sight of a user in an operation process, panel scratches are reduced, and the gear-free touch control handheld type electronic device can be operated and controlled by a single hand in a multi-touch way.