Method, system and terminal for preventing faulty touch operation

A method, system and terminal for preventing a faulty touch operation. The method comprises: acquiring a position of a touch signal received by a touchscreen; acquiring a slope direction of a terminal; and judging whether the slope direction of the terminal and the position of the touch signal conform to a preset matching relationship, and if so, enabling the touch signal to be invalid. The faulty operation of a user at a touchscreen terminal can be prevented, thereby improving the user experience.