Abstract: The glass tank furnace is the main equipment in a glass factory. The quality of its design affects not only the output and the quality of glass, but also the cost of the products. The procedure of the design contains two steps. One is scheme design and calculation. The other is drawing. In this paper, a new computer automatic design method is introduced, in which Borland C ++ is used for the scheme design and calculation and the Auto CAD is used for making three drawings, which are the front view, the side view and the plan view of this cross fire furnace.