A high-voltage fuse, comprising a temperature fuse device, configured to perform an over-temperature fusing function, and a high-voltage breaking device, configured to remain in an on-state when the temperature fuse device achieves over temperature fusing, wherein the temperature fuse device and the high-voltage breaking device are connected in parallel; the high-voltage breaking device comprises a fuse link configured to perform a high-voltage breaking function; and a resistance value of the temperature fuse device is lower than a resistance value of the fuse link, and a melting point of the temperature fuse device is lower than a melting point of the fuse link, and further comprising a right electrode piece (204, 304) and a left electrode piece (206, 306) and an insulating casing, wherein, a first end of the temperature fuse device is connected to the left electrode piece, and a second end of the temperature fuse device is connected to the right electrode piece; a first end of the high-voltage breaking device is connected to the left electrode piece, and a second end of the high-voltage breaking device is connected to the right electrode piece; the temperature fuse device and the high-voltage breaking device are packaged in the insulating casing; and the left electrode piece and the right electrode piece are extended out of the insulating casing as lead-out ends, wherein the temperature fuse device comprises a fusing cavity wherein a fusible alloy coated with a fluxing agent is provided between a right L-shaped connecting portion and a left L-shaped connecting portion to form the electrical connection between the right electrode piece, the fusible alloy and the left electrode piece, characterized in that the high-voltage breaking device comprises a breaking cavity, wherein a n-shaped alloy wire is provided between a right-side hole and a left-side hole, one end of the alloy wire is fixed to the right electrode piece through the right soldering tin, and the other end of the alloy wire is fixed to the left electrode piece through the left soldering tin, thereby forming the electrical connection between the right electrode piece, the alloy wire and the left electrode piece; and the fuse link is an n-shaped structure, which includes an alloy wire (207, 307), and parallel segments of the fuse link are arranged at both ends of the fuse link, respectively; and wherein the right electrode piece (204, 304) and the left electrode piece (206, 306) in their respective entirety are in a same plane and a mirror image relationship, and are provided at an interval directly opposite to each other and the alloy wire (207, 307) is fixed at one end to a right-side hole (204b, 304b) on the right electrode piece (204, 304) and fixed at the other end to a left-side hole on the left electrode piece (206, 306), and the high-voltage breaking device further comprises a breaking insulating stopper provided between the parallel segments of the fuse link. the temperature fuse device comprises a fusing cavity wherein a fusible alloy coated with a fluxing agent is provided between a right L-shaped connecting portion and a left L-shaped connecting portion to form the electrical connection between the right electrode piece, the fusible alloy and the left electrode piece, characterized in that the high-voltage breaking device comprises a breaking cavity, wherein a n-shaped alloy wire is provided between a right-side hole and a left-side hole, one end of the alloy wire is fixed to the right electrode piece through the right soldering tin, and the other end of the alloy wire is fixed to the left electrode piece through the left soldering tin, thereby forming the electrical connection between the right electrode piece, the alloy wire and the left electrode piece; and the fuse link is an n-shaped structure, which includes an alloy wire (207, 307), and parallel segments of the fuse link are arranged at both ends of the fuse link, respectively; and wherein the right electrode piece (204, 304) and the left electrode piece (206, 306) in their respective entirety are in a same plane and a mirror image relationship, and are provided at an interval directly opposite to each other and the alloy wire (207, 307) is fixed at one end to a right-side hole (204b, 304b) on the right electrode piece (204, 304) and fixed at the other end to a left-side hole on the left electrode piece (206, 306), and the high-voltage breaking device further comprises a breaking insulating stopper provided between the parallel segments of the fuse link.