Flexible rockfall energy dissipation buffer protection device

The utility model relates to a flexible rockfall energy dissipation buffer protection device which is characterized in that a sliding groove is formed in the inner side of a stand column, a sliding block is installed in the sliding groove in a sliding mode, a rapid locking assembly is arranged on one side of the sliding block, a hook is fixedly welded to one side of the sliding block, a mesh is installed on the sliding block through the hook, and the mesh is provided with a locking assembly. The net pieces are transversely unfolded between the stand columns, the height of the stand columns is about 1.8 m, the stand columns are reinforced through the transverse restraining ropes and the longitudinal restraining ropes, the net pieces on the stand columns can bear larger force, installation is easy, the height of the net pieces is adjusted through the sliding blocks, the height of the net pieces is locked through the quick locking assemblies, and when stone blocks intercepted by the net pieces are small, the net