A heat dissipation module includes a fan, a heat sink and a heat pipe. The fan defines an air outlet at one side thereof. The duct extends from the fan and away from the air outlet. The duct includes a first open end communicating with the fan and a second open end adjacent to a heat generating component. The located is located at the air outlet of the fan. The heat pipe thermally interconnects the heat sink and the heat generating component. The duct guides a part of airflow generated by the fan to the heat generating component during operation of the fan.