A vibration heat-pressing device includes a positioning member, a support body, a pressing mechanism, a vibration generator, and a heating rod. The positioning member supports and positions the workpiece. The pressing mechanism, the vibration generator, and the heating rod are located on the support body. The support body defines a first mounting hole. The heating rod is engaged in the first mounting hole. One end of the heating rod extends out from the support body and is connected to a heating device. The heating rod heats the heating rod of the pressing mechanism. A heat-conducting medium is filled in a gap between the heating rod and an inner wall of the first mounting hole. While the heating rod of the pressing mechanism are heated, the vibration generator vibrates the pressing mechanism.