The invention provides a distorted image correction method and a touch position recognition method and device. The distorted image correction method comprises the steps that according to all target calibration points of a to-be-calibrated screen, two straight lines are projected to the to-be-calibrated screen, and intersections of the two straight lines are the target calibration points; a corresponding relation between all points of the to-be-calibrated screen and all points in a calibration image is acquired, wherein the calibration image is an image, collected when the two straight lines are projected to the to-be-calibrated screen, of the to-be-calibrated screen; and a distorted image is corrected according to the corresponding relation between all the points of the calibrated screen and all the points in the calibration image. According to the embodiment, the screen is calibrated by means of projecting the straight lines to the screen without the need for performing geometric correction on a camera, coordinate points of the calibrated screen are utilized to correct the distorted image, the anti-interference capability is strong in the calibration process, and the correction result is more accurate.