Abstract: Nearly same results are found when storing Ceratoides arborescens seed （MC 4.2%-4.5% ）in ultra-dried and an outdoor temperature or in a low temperature.Lifetime of the seed is prolonged in both conditions. During the storage period ,the isozymes of the ultra-dried C. arborescens seed show higher activities than those of the control, thus slowing the ageing of the seed and prolonging its storage life.