The utility model provides a novel heating of multistage formula device, includes the heat conductor that receives in an at least heating pipe, band -pass hole, the heating pipe gomphosis is in receiving the through -hole of heat conductor, heating wire, the circular telegram wire that the number of turns is not all unanimous is described including heating body, at least three -section spring to the heating pipe, concatenate between the heating wire to the interior heating pipe body cavity of placing in, circular telegram wire and one of them heating wire electric connection. The utility modelprovides a because of being heated, glass mid portion leads to the monoblock glass inhomogeneous problem of being heated more slowly to it is bad that the reduction produces in heating glass.