The invention discloses a slot-type solar heat collector reflector group and a forming technology therefor. The reflector group consists of a supporting wing, a frame square tube, a U-shaped clamp, a mirror stainless steel plate, a rotating shaft, a reflector installation long shaft, and a press bar. The forming technology comprises the steps: firstly carrying out cutting through laser and machining a paraboloidal molded surface, i.e., the supporting wing and the press bar; secondly enabling the reflector installation long shaft to be connected with a structural bolt of the supporting wing, and then enabling the frame square tube to be clamped in an installation groove, and forming a molded surface structure through welding; finally enabling the mirror stainless steel plate to be laid on the supporting wing, clamping the press bar through the U-shaped clamp, fixing the press bar on the frame square tube, and enabling the rotating shaft and the reflector installation long shaft to be connected, thereby completing the installation and manufacturing of the whole slot-type solar heat collector reflector group. The reflector group is low in machining cost, is of a quick assembly type, is high in cost performance, and is not liable to deform.