Abstract:In this paper,the authors concisely introduced their major research results and conclusions of the systematical,deepgoing and serial studies on the imbibitional chilling injury in seeds and osmoconditioning in last twenty years,in which the law and mechanism of imbibitional chilling injury in seed,the establishment of di|repair theory and comsummating the osmoconditioning system and it applied effects were included.Especially,it was emphasized that the original action target of imbibitional chilling injury is localized on the biomembrane, the discovery of adaptability|defended responses in seeds,i.e.a signal of imbibitional chilling injury,and three kinds of adaptability|defenged responses in seeds,the view and concept of di|repair theory in cold imbibitional seeds and its important scientific significance and applied valve etc.