The invention provides a fuse. The fuse comprises a support assembly, a fuse wire, a first connector structure and a second connector structure. The fuse wire runs through a fuse tube. The first connector structure comprises a first connector part, a first conductive part and a first elastic piece, wherein the first conductive part and the first elastic piece are arranged on the first connector part; the first connector part is movably arranged at the first end of the fuse tube; and the first elastic piece applies elastic force away from the first end of the fuse tube to the first connector part. The second connector structure comprises a second connector part and a second elastic piece arranged on the second connector part. The first end of the fuse wire is connected to the first connector part; the second end of the fuse wire is connected to the second connector part; the first end of the fuse wire and the first connector part move synchronously; and when the fuse wire is in a fusedstate, the first connector part moves upwards, the first conductive part is separated from the first end of the support assembly, and the second elastic part is separated from the fuse wire. Accordingto the technical scheme provided by the invention, the problems that the fuse wire is not easy to break quickly after overcurrent fusing and a relatively large electric arc is generated in the related technology are effectively solved.