This series of Double chamber vacuum oil quenching gas cooling furnace consists of furnace body, inner transmission mechanism, vacuum system, inflation system, water cooling system and furnace outer material car etc. It is mainly used for bright quenching of materials like alloy steel, alloy tool steel, die steel, high-speed steel, bearing steel, elastic alloy, stainless steel etc, and also for sintering, bright annealing and vacuum brazing of magnetic matrial. Graphite rod is used as heating element which has the advantage of long service life time. The furnace adopts mechanical transmission, which is accurate and reliable; it employs humanized operation design, which can realize manual, partition and fully automatic operation.