Varition of microflora and enzyme activity in solar greenhouse soil contions cropping for 1，3，5，7，9 years was studied.The results showed that the soil microbial number and enzyme activity showed a significant greenhouseeven effect，with increasing years of continuous cropping，the total microorganism，bacteria showed a change，the decrease in the number of‘B/F，A/F’，microbes from the“bacterial type”transition to the“fungal type”，including ammonification bacteria nitrifying bacteria showed a decreasing trend.With increasing years of continuous cropping，the majority of soil enzyme activity showed a downward trend but the catalase activity showed an increasing trend.