Abstract: An LED tube lamp structure includes a heat-transferring and light-pervious glass tube; a heat-dissipation metal base in the form of an elongated strip with a predetermined curve and bonded to an inner surface of the glass tube via a thermal adhesive; an LED chip circuit board fitted in a receiving seat on a front side of the heat-dissipation metal base and connected to an LED driving circuit; and two electrode covers fitted on two open ends of the glass tube and internally provided with an insertion section each. The heat-dissipation metal base has two ends inserted into the two insertion sections to have an upward tension for tightly contacting with the glass tube. Therefore, heat produced by the LED tube lamp is effectively transferred to the glass tube and dissipated into ambient air to extend the service life of the LED tube lamp.