Cultivation in greenhouse has become one important cropping system in Yunnan province.The accumulation of heavy metal caused by different fertilization may affect the soil ecosystem in greenhouse.This paper investigated the heavy metals contents of soil surface horizon and studied their rigional different lation useing principle component analysis method in greenhouse from six major areas in Yunnan Province.Results showed as follows:According to the principal component analyses,the study area was divided into two groups:Yuxi,Qujing and Baoshan areas belonged to the first group,in which the heavy meatals were sulphurphile group.And Chenggong county,Guandu county and Honghe district belonged to the second,where the heavy meatals were iron group.Correlation analyses indicated that there were significant positive correlations among the elements of iron group and the elements of closing to sulphur group.The correlation elements of iron group were more significant than those among the latter.There were positive correlation between the elements of iron group and the elements of closing to sulphur group.There was significant correlation between Cd and sulphurphile group,and 33% of them was highly significant.There was highly significant correlation between Cd and iron group.The correlation between Hg and the other elements was negative.