Temperature limiting explosion-proof bolt and water storage electric water heater with bolt

The invention discloses a temperature limiting explosion-proof bolt and a water storage electric water heater with the bolt. The explosion-proof bolt comprises a carrier, a first-stage melting bolt, asecond-stage melting bolt, a third-stage melting bolt and an insulation piece. The carrier is used for bearing the melting bolts, and meanwhile, is used for connecting with a liner of the water heater. The melting bolts are metal alloys; the melting point of the first-stage melting bolt is 135 DEG C; the melting point of the second-stage melting bolt is 145 DEG C; and the melting point of the third-stage melting bolt is 160 DEG C. The insulation piece is used for reducing the contact area of the explosion-proof bolt with water to reduce consumption of an anode protecting device by electrochemical corrosion. The explosion-proof bolt is mounted above a heating device of the water heater; when the heating device heats the water stored in the liner, due to the convection effect, the explosion-proof bolt can effective