The invention discloses a composite protective structure resistant to blast shock which is mainly a point truss
honeycomb integral protective structure formed by a
honeycomb tensile layer and a lattice truss-type compression resistance layer through
welding spots and connecting keys, and a foam
energy absorbing layer is added on the outer layer. According to the composite protective structure, theforce transmission path of a concrete protective structure under the action of blast is innovatively optimized, the resistance level of the protective structure can be greatly improved, and the structure
ductility is improved; and the dispersion of concrete fragments in the structure can be restrained, and the phenomenon of blast and explosion-induced collapse of similar traditional concrete protective structures is eliminated.