〔Abstract〕 Objective To evaluate the value of color doppler ultrasonography and shear wave elastography in the acute kidney injury after the kidney transplantation. Methods The data of general demographic, ultrasound and blood index had been collected.t test, χ2test and logistic regression model had been used to analyze the data. Results 202 patients were included in this survey, and 67 patients were AKI.Univariate analysis found that AKI after the kidney transplantation had an older age(t=2.87,P<0.01),shorter length of transplanted kidney(t=2.56,P=0.01),lower peak systolic velocity(P<0.01),higher resistance index and pulsatility index(P<0.01),higher scores of max, mean and min values of renal cortex(t=4.21,P<0.01;t=4.92,P<0.01;t=4.34,P<0.01).Logistic regression model analysis found that length of transplanted kidney(OR=0.96,[95%CI,0.90-0.99]) and PSV of renal aorta(OR=0.98,[95%CI,0.97-0.99]) were protective factors. Conclusion The technique of doppler ultrasonography has a certain application prospect in evaluating the occurrence of AKI after kidney transplantation, while the technique of shear wave elastography needs further study.