Abstract: Objective To examine the effectiveness of a hierarchical and progressive teaching model in the standardizedresidency training program in the Department of Endocrinology at Xuanwu Hospital. Methods Based on the pilot reformconducted at Xuanwu Hospital, Capital Medical University in 2021, the residency training in endocrinology was stratifiedinto two levels according to the trainees' year: R1 (first-year residents) and R2 (second- or third-year residents). Thedepartment developed differentiated training objectives: R1 trainees were expected to master the diagnosis and treatmentprotocols for common endocrine disorders, while R2 trainees focused on enhancing subspecialty skills, managing complexcases, and improving teaching capabilities. A stepwise instructional framework was implemented, along with a 360-degreeevaluation and a multidimensional assessment system. Results From January to December 2024, a total of 95 residentscompleted their training in the endocrinology department (55 in R1, 40 in R2). Practical data showed that R2 residentsachieved significantly higher examination scores compared to R1 residents (91. 45±1. 93) vs (89. 18±3. 26) points, andsatisfaction scores for both levels exceeded 45 out of 50 points. Conclusion The findings demonstrate that this teachingmodel effectively enhances clinical competence; however, further efforts are needed to strengthen faculty development andoptimize resource allocation. This study provides reference for the promotion of the hierarchical progressive teaching modelin the standardized training of residents in the department of endocrinology.