The invention discloses a power outage protection circuit. The power outage protection circuit includes a first time delay module, a second time delay module, a switching circuit and a load block module; the first end of the first time delay module is connected with the first end of the switching circuit; the second end of the switching circuit is connected with the first end of the second time delay module; the third end of the switching circuit is connected with the first end of the load block module; and the second time delay module is connected with the second end of the load block module. According to the power outage protection circuit of the invention, when power supply is turned off after power outage, switching on or switching off is carried out through the switching circuit, so that the first time delay module, the second time delay module and the load block module work together to prolong the power-on time of a load, namely, after current in the circuit is stable, the load is electrified, and therefore, the load can be protected from being damaged due to excessively high current.