The objectives of this study were to investigate of seed storability of three hybrid corn varieties after accelerated aging. The experiment was conduced at seed quality testing section, Seed Processing Plants, Faculty of Agriculture, Khon Kaen University. The three hybrid corn seeds were separated of two parts. The first part of seed was accelerated aging at 45°C, 100 % relative humidity for 8 days. The accelerated aging seeds were taken every day. The other parts of seed were storage in controlled and ambient condition. They were evaluated for germination in laboratory, field condition and speed of germination. The results indicated that seed quality characters were deterioration with time when seeds were subjected to accelerated aging and both condition of storage. Accelerated aging condition, controlled and ambient condition of storage gave similar patterns of seed deterioration, showing logistic response. The response was them described by logistic equation. The ratios of the conditions are very consistency. This results indicated that accelerated aging technique can be use evaluate seed vigour and predict seed storability.