Abstract: The effect of pest resistant transgenic rice MH86^CpTI and MH86^CpTI+Bton arthropod community diversity in Fuzhou rice fields was investigated. Results show that arthropod community in pest resistant transgenic rice fields can be classified into initial,unsteady and development communities.From tillering stage to waxy ripe stage of rice,species and individual number of arthrop od communities collected are as follows:CK>MH86^CpTI＞MH86^CpTI+Btand CK＞MH86^CpTI＞MH86^CpTI+Bt;both general diversity index and index of evenness are all CK>MH86^CpTI＞MH86^CpTI+Bt.No significant difference of diversity is recorded between arthropod community in pest resistant transgenic rice fields and non-transgenic rice fields.At the early and late rice growth stages,the dominant pests in the transgenic rice fields are Nephotettix concticeps and Nilaparavate lugens respectively.