[Objectives]  The HH1 strain of cry1Ab/cry1Ac Bt-transgenic rice (Bt rice) and its parental line MH63 (non-Bt rice) were selected to study the effects of Bt rice on the population dynamics of Cyrtorhinus lividipennis, the key predator of the brown plant-hopper (BPH), Nilaparvata lugens and the white-backed planthopper (WBPH), Sogatella furcifera. [Methods]  From 2011 to 2013, field experiments were carried out in paddy-fields of Bt and non-Bt rice inXinganCounty,GuangxiProvince. [Results]  The results indicate that C. lividipennis tended to increase from 2010 to 2013, and that there was a significant difference in the population dynamics of C. lividipennis in Bt rice compared to non-Bt rice fields in 2012. There were significant differences in the population dynamics of BPH and WBPH, and their interactions with C. lividipennis, between the two kinds of rice crops among all three sampling years. However, there were only significant differences in the abundance dynamics of BPH and WBPH among the three sampling years. Correlation analysis shows that there was a positive relationship between the abundance of C. lividipennis and N. lugens and S. furcifera in 2011, 2012 and 2013. [Conclusion] We conclude that there are higher predator abundances of C. lividipennis in fields of transgenic Bt rice, probably due in most part to higher abundances of N. lugens and S. furcifera.