The invention discloses a very-low frequency (VLF) antenna, which belongs to the technical field of communication. The VLF antenna comprises a hovering flying object, a suction pump, an antenna body,a fuel oil delivery pipeline and a pressure pump, wherein the suction pump is arranged in the hovering flying object, an input end of the pressure pump is used for acquiring fuel oil, one end of the fuel oil delivery pipeline is communicated with an output end of the pressure pump, the other end of the fuel oil delivery pipeline is communicated with an input end of the suction pump, an output endof the suction pump is communicated with an oil delivery port of a power system of the hovering flying object, the fuel oil delivery pipeline passes through the antenna body, one end of the antenna body is arranged near the hovering flying object, and the other end of the antenna body is used for being electrically connected with a signal transmission system.