In this study, 48 long-term exposed people with polychemicals (the male/female ratio is 1/3, the age from 23 to 44) such as organic and iso-organic acidsbenzene, toluene and their coequals were investigated. 17 normal people not exposed with polychemicals as the control group. Results were shown following quantity of erythrocyte was lower than control group but not significantly. Leucocytes especially neutrophils reduced significantly (p<0.001). 15/48 cases (30%) appereared lymphoblast. There is no difference in platelet between studied group and control group