A system and method for detecting a plurality of touch points on a touch panel is disclosed. A touch position detector comprises a touch panel, a detection module and an identification module. The touch panel comprises n+1 groups of mutually-parallel electrodes, and at least two of the n+1 groups are arranged at a predefined angle, where n is an integer. The detection module detects position information for each of the n+1 groups, and the position information corresponds to n touched positions on the touch panel. The identification module identifies the n touched positions based on the position information and the predefined angle.