Objective：To explore the effect of improving the sonographers’ clinic skills who participated in the Standardized Training of Residents through PDCA circulation. Method：41 physicians who participated in standardized training from February in 2014 to February in 2015 were served as the control group, and they were taught by traditional teaching method. The other 45 physicians who were taught by PDCA circulation method from March in 2015 to February in 2016 were served as the experimental group, and then they were examined at final. Training time of both groups was 12 weeks. Result: no matter the theoretical score or clinical skills’ score, there is statistical significance between the score of experimental group and that of control group, and the former is higher than the latter (P<0.05).In the satisfaction survey, statistical significance were found in the training content, training methods and the training effectiveness between the experiment group and control group (P<0.001) except the positivity of clinic teacher (P =0.23). Conclusion: PDCA cycle is an effective teaching method which can improve the sonographers’ clinic skills in the resident standardized training, and it deserves the clinical expansion.