Objective: To investigate the clinical effect of Hemoperfusion( HP) on Omethoate intoxication. Methods: 70 cases of Omethoate intoxication were selected for oral first aid. The random number table was divided into HP treatment group and traditional treatment group( non HP group). There were 35 cases in each group. The patients' coma time,atropine dosage,hospitalization time,blood cholinesterase( Ch E) activity and blood poison clearance were observed in two groups,and the prognosis of the two groups was com...