Cable protection device

The utility model relates to a cable protection device which is used for protecting a cable in a wind turbine generator. The cable protection device comprises a supporting assembly and a protection sleeve assembly, the supporting assembly comprises a supporting frame and a mounting frame, one end of the supporting frame is arranged on a tower footing of the wind turbine generator, the other end of the supporting frame is connected with the mounting frame, the mounting frame is of a hollow structure with a mounting space, and a cable is located in the mounting space; the protective sleeve assembly sleeves the cable and is connected with the mounting rack. By nesting the cable in the protective sleeve assembly connected with the mounting rack and arranging the support frame connected with the mounting rack on the tower footing of the wind turbine generator, the vertically suspended cable can be conveniently lifted and supported, mounting points for fixing a cable clamp and a cabling rack do not need to be reser