Abstract:In this experiment the effect of SA on seedling growth were studied by using 0.25 and 0.5mmol.L-1 SA pretreatment(spraying or adding to hydroponics solution)the rice seedlings before were chilled at 8℃ with the Japonica Xi-giant embryo-1 rice. The result showed that the SA pretreatment could increased chilling resistance and reduced the injury of grain embryo rice seedling by enhancing the content of chlorophyll and soluble sugar,and it has certain promoted effect on the seedling growth of the shoot and root. In force, 0.5mmol.L-1 was better than 0.25mmol.L-1 for increasing chilling resistance of SA pretreatment,adding to hydroponics solution was better than spraying solution for increasing chilling resistance of SA pretreatment.