The invention provides a method for purifying and recycling an oxygen-containing propylene gas mixture. The method comprises the following steps: mixing an oxygen-containing propylene gas mixture and an inert gas, and introducing or separately introducing into an absorption tower for countercurrent contact with an absorption agent so as to absorb and remove propylene and propane in the gas mixture; discharging the oxygen-containing gas mixture without propylene and propane from the tower top of the absorption tower; withdrawing the mixture of the absorption agent, propane and propylene from the tower kettle of the absorption tower, and desorbing in a desorption tower; withdrawing the gas mixture of propylene and propane from the tower top, and withdrawing the absorption agent containing impurities; and performing heat exchange and cooling of the absorption agent containing impurities, and returning to the absorption tower for recycling. By adopting the method, the oxygen in oxygen-containing propylene can be removed efficiently, safely and economically while the propylene is recycled; and the oxygen removal rate can exceed 90%, and the propylene recycling rate can exceed 95%.