The invention relates to a sheet airing machine. The sheet airing machine comprises a trolley. Thin wood sheets needing to be aired are placed on the trolley, and the trolley is provided with an exhaust fan, an air suction hose, a base support, a base plate, sliding wheels, a transverse plate, an inclined plate, an inclined plate supporting rod, a vertical beam, a threaded rod, a threaded base, athreaded connecting piece, a motor and a thin plate sucking and moving device. The vertical beam is fixed to the base plate, and the thin plate sucking and moving device is arranged on the vertical beam. The tail of the air suction hose is connected with the thin plate sucking and moving device. The thin plate sucking and moving device comprises a groove steel strip, a transverse outlet beam, a cylinder, a bending frame, an inserting groove plate, a spring clamping sheet, a rubber suction head, an air pipe, a fixing frame plate and a bounce preventing ejector piece. The sheet airing machine issuitable for being used by a wood machining factory, low in cost and capable of saving labor force.