The demands of the workplace in carrying out out the practice in the hospital can increase stress because it requires sharpness and speed in carrying out tasks, so to be competent are needed more professionally. This study aimed to apply the critical thinking model of nurses in carrying cut nursing care to assess, diagnose, intervene, implement, and evaluate nursing. The research method used similar in the control group with pre and post-test design. The intervention was training about knowledge and applying critical thinking models in implementing nursing care for patients for five days. The sample was 30 nurses who worked in surgical in patients who carried out nursing care. The data was analyzed using a dependent test and multiple linear regression. The results showed there was a significant difference between the nurse's knowledge before and after being trained (p-value 0.001) whereas there was a significant difference between the application nurse's critical thinking before and after being trained (p-value 0.004). A slight difference was found in the diagnosis, nursing intervention, and evaluation. The characteristics of nurses that can influence the knowledge of nurses about 0.59% and which can affect the application about 15.2%, the rest is influenced by other factors. Nurses who are trained can improve critical thinking skills by 14.95. The application of critical thinking skills models can improve nursing care for post-operative patients.