A series of experiments on cryoperservation of Arabidopsis suspension cells were performed,and a viable sample method was obtained.The optimized scheme is shown as follows: taking Arabidopsis suspension cells in 2 days after subculture,washing them for one time,resuspending the cell pellet in basic medium with 6% of sucrose,pretreating the suspension for 6 hours with 4℃ degree temperature,concentrating the suspension,adding 160 g·L-1 of glycerol as cryopretective agent,placing and keeping it in cryogenic refrigerator(-80 ℃),thawing it wit...