The utility model relates to the technical field of wheat cultivation, and discloses a seed preservation device for wheat cultivation, which comprises a preservation tank, the surface of the preservation tank is fixedly connected with a support frame, the front side and the rear side in the support frame are fixedly connected with fixing sleeves, and the front side in each fixing sleeve is provided with a
nitrogen tank. A
carbon dioxide tank is arranged on the rear side in the fixing sleeve, the gas outlet ends of the
nitrogen tank and the
carbon dioxide tank communicate with electromagnetic valves, the output ends of the electromagnetic valves communicate with flow meters, and a
gas mixing tank is installed on the right side of the supporting frame through a fixing plate. According to the low-
oxygen wheat seed storage device, through mutual cooperation of the
storage tank, the supporting frame, the fixing sleeve, the
nitrogen tank, the
carbon dioxide tank, the
electromagnetic valve, the flow meter, the gas inlet ring, the
gas mixing tank and the like, nitrogen and carbon dioxide are driven to be mixed and efficiently replaced with air in the
storage tank, so that wheat seeds are stored in a low-
oxygen environment; the effect of long-acting preservation of the seeds is realized.