This study is to evaluate the effect of a clinical nursing pathway (CNP) on the clinical outcomes of the transradial approach for emergency percutaneous coronary intervention (PCI). A total of 118 subjects diagnosed with acute myocardial infarction (AMI) were enrolled in the study. They were randomly divided into a control group receiving conventional nursing and a clinical nursing pathway group. The differences in door-to-balloon time, length of hospital stay, hospitalization cost, postoperative complications, and patient satisfaction with nursing care between the two groups were determined and analyzed statistically. Results indicated that the clinical nursing pathway is a more cost-effective care strategy for transradial PCI in the setting of AMI resulting in a reduced door-to-balloon time, less post-operative complications, and improved patient satisfaction.