Abstract: This paper collects 383 case materials of pesticide test.And the following regularities of cases come from statistical analysis; 1.The cases of pesticide occur mainly in suburban and rural area in which the rate of cascs is hig- her thcm that in city. 2.The poisoning cases are classified into the first point,the poison-throwing cases next to it. 3.The proportion of death caused by poisoning in 67.1 perent in city,but in rural area,it is simil- arly equal to that caused by throwing poison,both of which make up the 90.6 perent of the cases in the suburban and rural area. The charactistics is as follow: 1.young women suiciding by taking poison,most of whom work as workers and peasants,occupy the main position in such cases. 2.66.0 percent of factors of such cases.are attributed to the sharpening of rarious contradiction and dispute. 3.Amony all the pesticide cmerging in these cases,the organic phosphorous insecticide,which propo- rtion is 82.2 percent,present at the first position by testing results.The first six main pesticides are as follow in order:DDVP(dichlorouos),Methomidophos,Dimethoate,Phosphamidon,Zinc Phosphide and Car- bofuran while,in the same time,attention should by paid to the appearance of new and mixed pesticide. Therefore,in order to cat down the cases of pesticide,it is the measure to strengthen strongly the safe aepiiance,restoration and administration of pesticide,the education of legal system and the timely cencili ation of various contradiction and dispute.