A heat-dissipating module includes a heat pipe and a heat-dissipating device. The heat pipe has a first end, a second end and a partition pipe section. The first end is connected to a first heat-generating component. The second end is connected to a second heat-generating component. The diameter of the partition pipe section is different from the diameter of the first end. The heat-dissipating device is disposed on the heat pipe and is located between the first end and the second end. The heat-dissipating device includes a first heat-dissipating part and a second heat-dissipating part. The first heat-dissipating part is located between the first end and the partition pipe section for dissipating heat generated by the first heat-generating component. The second heat-dissipating part is located between the second end and the partition pipe section for dissipating heat generated by the second heat-generating component.