The invention belongs to the field of outdoor backpacks and manufacturing processes thereof and discloses a functional fabric for the outdoor backpacks and a manufacturing process of the functional fabric for the outdoor backpacks. The functional fabric is prepared from, by weight, 50-80 parts of basic fibers, 110-200 parts of fireproof fibers, 100-180 parts of wear-proof fibers and 90-155 parts of PTFE (polytetrafluoroethylene) microparticles. The manufacturing process includes steps of raw material preparation, yarn spinning, dyeing, weaving, impregnating, drying, sintering and the like. Since the provided fabric raw materials include the fireproof fibers, the wear-proof fibers and the PTFE microparticles, the wear-proof fibers can make up shortcomings of the fireproof fibers, and strength and wear resistance of the fabric are greatly improved on the basis of normal fabrics; by adoption of the appropriate process for manufacturing the fabric, evident effective fireproof, wear-proof and waterproof performances of the fabric are achieved, the adoption rate of the fabric applied to the outdoor backpacks is further increased, the use value of the outdoor backpacks made of the fabric is increased, and market competitiveness is improved.