An assembling infrared touch control module includes four L-shaped first frame members and a plurality of straight second frame members matched in pairs. Each first and second frame member has a space therein and two openings at two ends thereof, respectively, in communication with the space. Each space has a circuit board therein. Each circuit board has a plurality of infrared transmitter/receiver components thereon and two connectors thereon at the two openings, respectively. The four first frame members and the second frame members, whose number may be increased or decreased by demand, are assembled together to form a frame by the connectors, so that an active touch area of the frame may be resized by demand to be adapted to a display device of any size, and an additional touch control function adapted to an extended area for the display device may be set.