The paper studied the effect of spraying different concentration of He-Ne laser and 6-benzylaminopurine (6-BA) on protective enzymes system under Cd2+ pollution.The result shows that 6-BA and He-Ne laser have the relieving effects on heavy metal injury.Super oxide dismutase (SOD)、peroxidase (POD) and catalase (CAT) activities can effectively improve in different degree,and the increase of malondialdehyde (MDA) content and electrolyte leakage become much slower.It shows that action of exogenous 6-BA and He-Ne laser can alleviate the injury caused by cadmium stress and increasing the cadmium resistance of wheat seedlings.