A glass-plate working apparatus comprising: at least two processing positions which each have a glass-plate supporting portion for supporting thereon a glass plate subject to processing and are arranged with an interval therebetween; and a transporting device for transferring the glass plate from the glass-plate supporting portion of one of said at least two processing positions to the glass-plate supporting portion of another one of said at least two processing positions, said transporting device including a transport shuttle which reciprocates between the glass-plate supporting portions of said one and said other processing positions and a suction pad mounted on the transport shuttle through a lifting unit , the transporting device being adapted to transport the glass plate from said one processing position to said other processing position through the reciprocating movement of the transport shuttle , the raising and lowering of the suction pad by the lifting unit , and the suction of, and releasing of suction of, the glass plate by the suction pad , characterized in that , the lifting unit includes a slider crank mechanism having a crankshaft and a slider, and a slide unit for guiding the linear raising and lowering of the slider, said slide unit comprises a pair of slide unit bodies each having a slide shaft , and a coupling body which couples the slide shafts and which has a lower surface on which the suction pad is mounted, the crankshaft being coupled to a lifting motor mounted on the transport shuttle , the suction pad being mounted on the slider and adapted to be linearly raised and lowered by the operation of the lifting motor . at least two processing positions which each have a glass-plate supporting portion for supporting thereon a glass plate subject to processing and are arranged with an interval therebetween; and a transporting device for transferring the glass plate from the glass-plate supporting portion of one of said at least two processing positions to the glass-plate supporting portion of another one of said at least two processing positions, said transporting device including a transport shuttle which reciprocates between the glass-plate supporting portions of said one and said other processing positions and a suction pad mounted on the transport shuttle through a lifting unit , the transporting device being adapted to transport the glass plate from said one processing position to said other processing position through the reciprocating movement of the transport shuttle , the raising and lowering of the suction pad by the lifting unit , and the suction of, and releasing of suction of, the glass plate by the suction pad , characterized in that , the lifting unit includes a slider crank mechanism having a crankshaft and a slider, and a slide unit for guiding the linear raising and lowering of the slider, said slide unit comprises a pair of slide unit bodies each having a slide shaft , and a coupling body which couples the slide shafts and which has a lower surface on which the suction pad is mounted, the crankshaft being coupled to a lifting motor mounted on the transport shuttle , the suction pad being mounted on the slider and adapted to be linearly raised and lowered by the operation of the lifting motor . <EOS>