The pumping and venting deoxygenation method with fluid bed comprises: with coked particle as the deoxidizer and fluid bed reactor, pumping gas into the fluid bed to fluidize the particle and mix the gas and solid completely; producing part oxidation reaction by the O2 in gas and C in coked particle at low temperature as 400-500Deg to consume O2 and release some heat; removing the residual heat conveniently for the fast heat transfer rate of fluid bed, and realizing the deoxygenation purpose. This fluid bed reactor needs small investment for simple structure, has high gas treatment capacity with low energy consumption and no explosion hazard.