Underground cable safety protection device

The invention discloses an underground cable safety protection device and belongs to the technical field of power cables. The underground cable safety protection device comprises a cable and a protection mechanism disposed above the cable, wherein the protection mechanism comprises a concrete support module and a damping module disposed between the cable and the concrete support module; the concrete support module comprises a cast-in-place concrete base layer, side walls vertically disposed on both sides of the base layer, and a top plate disposed between the two side walls; the damping modulecomprises a casing, support plates disposed on both sides of the casing, a protective plate disposed on the support plates, and a plurality of springs disposed between the protective plate and the casing. The underground cable safety protection device solves the problem that a traditional protection mechanism only protects the two sides and the upper part of the cable and that the lower part of the cable is likely to dam