To provide a circuit protection structure having the effect of double temperature-sensitive shutoffs.

The circuit protection structure providing double temperature-sensitive shutoffs comprises two independently operating temperature-sensitive shutoff devices, i.e., a temperature-sensitive shutoff device and a temperature fuse device, installed between two terminals of a circuit. During overcurrent, during overheating, or when ambient temperature is high, an elastic contact plate of the temperature-sensitive shutoff device receives heat, is deformed, and is curved in the opposite direction for a shutoff. Further, during overcurrent, during heating or when ambient temperature is high, if the temperature of the circuit continues to rise as the temperature-sensitive shutoff device does not or cannot react or repeats off and on, a soluble alloy of the temperature fuse device further receives heat and melts down, whereby the circuit is shut off. Since the two independent temperature-sensitive shutoff devices have the effect of double temperature-sensitive shutoffs by individually sensing temperatures, they cause the circuit to be temporarily shut off and then turned on or be completely shut off to prevent the circuit from being overheated or wires from firing.