Power cable protection device and method with anti-rotation function

The invention provides a power cable protection device and method with an anti-rotation function, belongs to the technical field of power protection, and solves the problems that an existing supporting protection device is fixed in structure, cannot be correspondingly adjusted and used according to the number of laid power cables and is poor in adaptability. According to the technical scheme, the device comprises a mounting straight plate, the mounting straight plate is provided with movable protection assemblies, and the protection number of the movable protection assemblies can be adjusted according to actual needs; the movable protection assembly is provided with an anti-rotation assembly; the movable protection assembly is provided with a locking assembly; the protection method comprises the steps that firstly, a mounting straight plate is mounted, an L-shaped movable plate of a locking assembly is pulled, and the L-shaped movable plate drives an insertion plate to be separated so that a second protection