An evacuated heat collecting tube, a manufacturing method, and a solar thermal power station, comprising a glass sleeve tube (4) and a metal tube (1). The metal tube (1) is arranged within the glass sleeve tube (4). An evacuated insulation layer is formed between the glass sleeve tube (4) and the metal tube (1). At least one inner tube (2) is arranged in the cavity of the metal tube (1). The cavity between the inner tube (2) and the metal tube (1) is filled with a thermal conductor (3) of which the thermal conductivity is greater than the thermal conductivity of the metal tube. The heat collecting tube reduces the temperature difference between either sides of the metal tube (1), thus allowing the surface temperature of the metal tube (1) to be more uniform, and at the same time reduces the wall surface temperature of the heat collecting tube, thus reducing the rate at which a coating on the metal tube (1) ages, and further increasing the service life of the evacuated heat collecting tube.