To further enhance quality control in breast cancer diagnosis and treatment across Sichuan Province, Expert Committee of Sichuan Provincial Quality Control Center for Multidisciplinary Precision Diagnosis and Treatment of Breast Cancer has established 44 quality control indexes and suggested standards. These indexes were developed through evidence from multiple authoritative domestic guidelines and consensus, combined with clinical quality control experience within the province. By emphasizing the multidisciplinary nature of breast cancer care and identifying crucial control points, this quality control system promotes regional standardization of medical services and elevates the overall quality of breast cancer management throughout Sichuan province.