Protection control device with double backup programs and starting method thereof

The invention relates to the technical field of power protection control, and provides a protection control device with double backup programs and a starting method of the protection control device. A slave memory; a CPU built-in program is built in the main CPU chip, and the main CPU chip is used for loading and running the primary bootstrap program; and the primary bootstrap program loads and runs the programs stored in the main memory or the slave memory, and verifies whether each program is complete and adapts to the current application scene, and if yes, a running device system is started. According to the protection control device, dual backup of the program can be achieved, whether the program is complete or not is actively verified when the program is loaded, the current requirement is met, under the condition that the main program is damaged, the main program is repaired through the other program backup, and therefore the reliability of the power protection control device is guaranteed. 本发明涉及电力保护控制技术