The bacteria DS-1,Q-2 and actinomycete SG126,screened from cucumber rhizosphere soil verified effective against Fusarium oxysporum f.sp.cucumerinum by sterilized soil,were used to study their biocontrol effects against Fusarium oxysporum and effects on the growth and metabolism of cucumber planted in continuous cropping soil in solar greenhouse.The results showed that DS-1,SG-126 and Q-2 could protect cucumber from Fusarium wilt and reduce its mortality,with biocontrol effects of 51.43%,42.86% and 37.50%,re...