For the purpose of saving power source，referring the heating principle of gas heating furnace in touch with the real production situation, the heating furnace conformation and the style of providing heat were reformed. The furnace hearth bottom area was reduced, gas recycle usage ratio was enlarged and the gas utility was increased.  In condition of non-changing shape ,the measures were taken, such as reducing furnace hearth area, adding thickness of inside hearth , fixing up some inanity storing brick of Φ120mm×240mm in furnace to increase the  temperature holding effect and its service life, rearranging gas refilling system structure, changing the gas passing nozzles from 4 to 2, and reasonably arranging gas filling opening, the gas consumption was reduced and the gas spending was saved for 600 thousands Yuan per year. Because the uniform heating method was used in the furnace , the product quality was increased and the unqualified product rate was lowered. This provides an effective reference for reforming the heating furnace and saving power source.