Abstract: Objective Retrospective analysis of characteristic of 3 114 consulted cases with pyrethroid pesticides poisoning in the national consultancy center was done to provide orientation for pesticide management and clinical treatment. Methods The original data was got from the data bank of consulted poisoning cases during 2008-2011,and the characterization of these cases was analyzed with SPSS 17.0. Results Poisoning cases usually occurred in summer and early autumn,and the major causes were suicide(51.57%)and accident or oral ingestion by mistake (28.87%). Among the cases caused by accident or oral ingestion by mistake, the children and teenagers younger than 18 years old accounted for 83.46%. Poisoning causes varied greatly in different age groups(χ²=4 460.35,P<0.01). Face and/or eye irritation was reported among 37.4% cases, while low AchE level was reported among 3.73% cases. 53.89% cases were caused by deltamethrin and deltamethrin-containing pesticides. Conclusion Though pyrethroid pesticides had lower acute toxicity, the consequence of poisoning can't be ignored. It is suggested to strengthen the supervision of the pesticide and safe keeping,enhance the application of personal protection awareness,and reduce the incidence of accident,oral ingestion by mistake and occupational exposure poisoning. The Reasons for the decline of cholinesterase activity among such cases should be further explored in the future.