The present invention relates to an explosion-barrier material which is made of kerfed and expanded aluminum alloy foil grid, and has a honeycomb-shaped vesicular structure. The chemical components have weight percentages that silicon is 0.3-0.6 percent, iron is 0.3-0.7 percent, copper is 0.1-0.2 percent, manganese is 0.8-1.8 percent, zinc is 0.1 percent, titanium is 0.1-0.2 percent, and aluminum is residual. The present invention also relates to the manufacture process of the explosion-barrier material. The process has steps that the aluminum alloy ingot is rolled to be aluminum alloy foil, cut to be kerfed aluminum foil with a joint cutter, and shaped and wound, then tempering treatment is performed to the shaped and wound aluminum foil with the tempering temperature of 220-240 DEG C and the tempering time durance of 8-10 hours, the aluminum foil after the tempering is discharged, cut and rolled, and then pulled and expanded to be the aluminum foil grid, and the aluminum foil grid is folded and molded to be the grid shaped explosion-barrier material. The explosion-barrier material of the present invention has the advantages of good explosion-proof performance, good flexibility, high tensile strength, and high elongation ratio.