The invention provides a feeding device. The feeding device comprises a material conveying pipeline, a hopper, bin gates and a controller; the material conveying pipeline is a hollow pipe with the twoopen ends; the hopper is in a conical shape, and the top of the conical shape is connected to one end of the material conveying pipeline so as to close the end of the material conveying pipeline; thebin gates are arranged on the side wall of one end of the material conveying pipeline so as to enable materials in the material conveying pipeline to pass through the bin gates to flow out along theouter surface of the hopper; and the controller is connected with the bin gates so as to control opening and closing of the bin gates. By using the feeding device in the feeding process of self-compacting concrete used for pouring members, gas in the self-compacting concrete can be discharged, and accordingly the quality of the poured members is improved.