A gate-type scraper blade mixing material taking machine for full-fracture-surface material taking of multiple materials comprises a first walking end beam, a second walking end beam, a scraper blade material taking system, a scraper blade cantilever crane, a claw mechanism, a gate-type steel frame, an amplitude-changing hoisting mechanism, a movable hinge, guide rails, a chain wheel set and a rail clamping device. The first walking end beam is fixedly connected with the gate-type steel frame, and the second walking end beam is hinged to the gate-type steel frame. One end of the scraper blade cantilever crane is fixedly hinged to one end of the gate-type steel frame through the chain wheel set, and the other end of the scraper blade cantilever crane is movably hinged to the other end of the gate-type steel frame. The guide rails used for supporting the claw mechanism are arranged on the upper face, the lower face and the side face of the scraper blade cantilever frame. The amplitude-changing hoisting mechanism is arranged below the scraper blade cantilever crane, and the claw mechanism is arranged on the scraper blade cantilever crane. The full-fracture-surface material taking homogenization ratio is large, the homogenization technology requirement of the materials are met, the problem that a common full-fracture-surface scraper plate material taking machine can only cut and take two kinds of materials can be solved, and the gate-type scraper blade mixing material taking machine is applied to the industries of cement, electric power, coal, wharves and the like.