The invention discloses a low-voltage self-recovery fuse, which comprises a first wiring terminal, a housing, a fuse pipe and a second wiring terminal. The first wiring terminal comprises a limiting ring, a nut and a groove; The shell comprises a stainless steel layer, a beryllium oxide ceramic tube, a mica glass and a vacuum layer; The stainless steel layer is arranged above the beryllium oxide ceramic tube and the mica glass; The melting pipe is arranged in a neon gas layer surrounded by mica glass; an argon gas layer, glass piston and sodium block are arranged in the fusion pipe; The argonlayer is arranged in a space above the glass piston; The width of the glass piston is equal to the inner diameter of the fusion pipe; The two sides of the sodium block are connected with a fuse woundon an insulating post; The second current terminal is arranged at the right end of the device, and the structure of the second current terminal is the same as that of the first current terminal; The invention has the advantages of reasonable design, simple structure, convenient and flexible operation, can automatically resume work, can avoid unnecessary repeated vaporization of the sodium block, prolongs the service life, and has good insulation property.