A sealing plug installation device with a feeding function comprises a rack and further comprises an execution device installed on the rack. The execution device comprises an execution base, an execution assembly, a dragging assembly and an opening and closing assembly. The execution assembly comprises an execution air cylinder and an execution sleeve. The execution air cylinder is vertically fixed to the execution base. The execution base is installed on the rack. The upper end of the execution sleeve is fixed to the lower end of the execution air cylinder. After stretching out, a working rod of the execution air cylinder is located in the execution sleeve. The dragging assembly comprises a dragging base plate, a dragging air cylinder and a dragging block. The dragging base plate is provided with an insertion hole and a feeding hole in a spaced mode. The lower end of the execution sleeve is aligned and fixed in the insertion hole. The dragging air cylinder is fixed below the dragging base plate. The dragging block is provided with a containing hole for containing a sealing plug. The dragging air cylinder drives the containing hole of the dragging block to move back and forth between the insertion hole and the feeding hole. The opening and closing assembly is located under the execution sleeve. The upper portion of the opening and closing assembly is the dragging block. The sealing plug installation device also comprises a sealing plug conveying device.