Common bean( Phaseolus vulgaris L) Cv. Guiyang-Qingbangdou were used as material,the effect of preservative quality on Guiyang-Qingbangdou from different maturities and picking up time during storage was investigated. The results showed that the effect was significantly,and the change of quality is moderate for the pods picked at 60% of maturity. The nutrients loss relatively small,less pods fibrosis and brewing is not obvious,the consumers are easy to accept after 24 hours. The preservative quality on Guiyang-Qingbangdou of harvest in mid-May was significantly higher than other harvest time. Therefore,the best climate conditions of Guiyang-Qingbangdou is April to May in greenhouse cultivation,and the best for the preservation is 60% maturity beans.