Tkls paper reported that a way or Preparlng superoxlde dlsmutase (SoD) modiried by lauric acid(LA-SoD) and study on stablllty of LA-SoD. The resultS showed that LA-SoD had high speclfic actlvlty,highstablllty and high rate of recovery. The stabiliy or LA-SoD ln temperature, pH and kuman gastrlc juice wasmuch higher than that of natural SOD. Because LA-SOD ls kept for a long tlme at room temperature, it canwiden the appIled range of SoD and brlng out conslderable benirlclaI results both in society and economy.