Objective To explore a simplified and modified method of rat kidney transplantation.Methods We analyzed more than 180 heterotopic modified rat kidney transplantation models at Children's Hospital of Chongqing Medical University,recorded operation points,operation time,and success rate,and shared our experience.Categorical variables were presented as ratios(%)and continuous variables were presented by mean±standard deviation.Results We have performed more than 180 allogenic heter-otopic rat kidney transplantation procedures and gained a success rate of about 85%.The operation time of recipients was 70-75 min with vascular anastomosis time of(25.3±3.8)min.Conclusion A modified model to improve efficiency and success rate of rat kidney transplantation is established.This modified model is easy to master,with short operation time and high success rate.