Abstract: The variation of germination index, seed vigor, conductivity of maize Tai Gu 1 and Ze Yu2 during the ageing process are studied by the means of artificial high temperature disposal to accelerating ageing. The result showed that the variations with vigor index and seed vigor of these materials reducing gradually, but the conductivity is rising step by step with the prolong of ageing disposal under the airtight conditions of high temperature (45+1℃)and high humidity (relative humidity 100percent). In the process, the influence on seed vigor and different germination index was little if they were disposed by short time; On the other hand, if they were disposed by the high temperature ageing of long time, the seed vigor and different germination index reduced rapidly. The height of different germination was positive correlative with the strong of seed vigor. On the contrary, was negative correlatives with conductivity during the ageing disposal.