Embodiments of the invention disclose a touch screen touch point location method and apparatus, and a terminal device, which can effectively shorten scanning time and improve the report rate. The method comprises the steps that for each target sub-region in a target region, a touch screen controller scans horizontal channels in the target sub-region parallelly, determines the target sub-region with a touch point, and determines whether the sub-region with the touch point can be divided, if the sub-region with the touch point can be divided, the target sub-region with the touch point is used as a target region, the above steps are repeated till the target sub-region with the touch point cannot be divided, then the horizontal coordinate of the touch point is determined; and a longitudinal coordinate of the touch point is determined according to longitudinal channels receiving signals of the horizontal channels parallelly. According to the method, a plurality of channels parallelly transmit to scan the horizontal coordinate, the scanning range is reduced through division of the target region, iteration and decrement, so that scanning time is saved, the report rate is improved, and the user experience is improved.