The utility model discloses an integrated carbon brush device for aerogenerator, including carbon brush and brush box, the carbon brush is fixed in the brush box, and the carbon brush includes the carbon brush brush body, and the brush box includes the brush box box body, and brush box box body both sides are equipped with the first fixed subassembly and the fixed subassembly of second of an outside extension respectively, and the brush box box body is equipped with the through -hole, and the one end of the carbon brush brush body is stretched out from the through -hole, contact conducting ring surface, and the wire is fixed to the carbon brush brush body other end, is equipped with an indent respectively in wire both sides, and the end of wire is equipped with the open joint, and the open joint is fixed on first fixed subassembly, the top both sides of brush box box body are equipped with a constant voltage spring respectively, and the constant voltage spring is embedded into in the indent, the side of the carbon brush brush body is fixed with the contact switch stop hook, and the below at the indent is established to the contact switch stop hook. The utility model discloses a carbon brush of integral type replaces the many brush sets stay knot among the prior art to construct, has solved the uneven problem of pressure, has reduced high temperature, the incidence of the troubles such as conducting ring surface of striking sparks, burn.