A recyclable fuse comprising: a first contact and a second contact, an insulating unit provided between the first contact and the second contact, a current control unit electrically connecting the first contact and the second contact, said current control unit is configured to allow the current to flow by electrically connecting the first contact and the second contact with each other when a temperature of the current control unit is less than a predetermined first temperature and said current control unit is configured to prevent the current from flowing by electrically interrupting the first contact and the second contact from each other when the temperature of the current control unit is equal to or more than the predetermined first temperature, characterized in that the current control unit is formed by two or more metals (120-1, 120-2) having different thermal expansion coefficients, wherein the current control unit is bent toward a metal having a low thermal expansion coefficient when the temperature of the current control unit is equal to or more than the predetermined first temperature and contact between the first contact and the current control unit is separated to electrically interrupt the first contact and the second contact and thereafter, when the temperature of the current control unit is recovered to a temperature less than the predetermined first temperature, the current control unit electrically connects the first contact and the second contact to each other again, the recyclable fuse further comprising a bonding portion formed at a contact point between the first contact and the current control unit, said bonding portion is configured to be in a solidified state showing a bonding property such that the contact between the first contact and the second contact is maintained when the temperature of the current control unit is less than the predetermined second temperature, and to be in a softened state showing viscoelasticity when the temperature of the current control unit is equal to or more than a predetermined second temperature, and is further configured to be in the solidified state again when the temperature of the current control unit is recovered to a temperature less than the predetermined second temperature after the bonding portion is in the softened state showing the viscoelasticity, wherein the bonding portion includes a material having electrical conductivity. a first contact and a second contact, an insulating unit provided between the first contact and the second contact, a current control unit electrically connecting the first contact and the second contact, said current control unit is configured to allow the current to flow by electrically connecting the first contact and the second contact with each other when a temperature of the current control unit is less than a predetermined first temperature and said current control unit is configured to prevent the current from flowing by electrically interrupting the first contact and the second contact from each other when the temperature of the current control unit is equal to or more than the predetermined first temperature, characterized in that the current control unit is formed by two or more metals (120-1, 120-2) having different thermal expansion coefficients, wherein the current control unit is bent toward a metal having a low thermal expansion coefficient when the temperature of the current control unit is equal to or more than the predetermined first temperature and contact between the first contact and the current control unit is separated to electrically interrupt the first contact and the second contact and thereafter, when the temperature of the current control unit is recovered to a temperature less than the predetermined first temperature, the current control unit electrically connects the first contact and the second contact to each other again, the recyclable fuse further comprising a bonding portion formed at a contact point between the first contact and the current control unit, said bonding portion is configured to be in a solidified state showing a bonding property such that the contact between the first contact and the second contact is maintained when the temperature of the current control unit is less than the predetermined second temperature, and to be in a softened state showing viscoelasticity when the temperature of the current control unit is equal to or more than a predetermined second temperature, and is further configured to be in the solidified state again when the temperature of the current control unit is recovered to a temperature less than the predetermined second temperature after the bonding portion is in the softened state showing the viscoelasticity, wherein the bonding portion includes a material having electrical conductivity.