Circuit protection fuse

A circuit protection fuse disclosed by the present invention comprises an outer shell, wire harness connecting ends, conducting strips and a fuse body, the wire harness connecting ends are fixed at the left and right sides of the outer shell and are used for being connected with a circuit, the fuse body is arranged in the outer shell, the left and right ends of the fuse body are connected with the outer shell through the conducting strips, and the conducting strips are arranged in the outer shell. The two ends of the fuse body are connected with the conducting strips in an attached mode, a mounting plate is arranged below the fuse body, a clamping mechanism is arranged above the mounting plate, the fuse body is limited above the mounting plate, and a front-back sliding structure is formed between the mounting plate and the outer shell. According to the circuit protection fuse, the damaged melts can be rapidly replaced through the multiple melts arranged on the mounting plate, the melts are controlled to move