Touch terminal, and one-hand operation method and device of large-screen touch terminal

The invention provides a touch terminal, and a one-hand operation method and device of a large-screen touch terminal. The method includes the steps of when receiving a command of entering a one-hand operation mode, displaying a first area and a second area on a screen of the touch terminal in a preset form; using the first area as a control area and the second area as an area which cannot be touched by a user with one hand; detecting a touch of the first area, and mapping the touch to the second area by coordinate mapping; when receiving a command of quitting the one-hand operation mode, hiding the first area and the second area. The touch terminal, and the one-hand operation method and device of the large-screen touch terminal have the advantages that the touch screen can be operated in full range by the user with one hand and the problem that operating the large-screen touch terminal with one hand is difficult is solved.