Background: The purpose of the study was to describe the determinants of survival for breast cancer patients at Hospital X Makassar City in 2018-2020. Methods : Design of this study is an descriptive observational with a retrospective cohort method using secondary data from medical records of breast cancer patients at Hospital X Makassar City for the period January 2018-December 2020 (n=196). Results : The average time span for breast cancer patients is 3.54 years with a minimum of 1 year and a maximum of 15 years. The average age of breast cancer patients is 48.9 years with a minimum age of 21 years and a maximum of 71 years. The initial age of the infected/detected patient, the average is 45.4 years with a minimum age of 19 years and a maximum of 67 years. Patients who survived were 90.3% (177 people). Breast cancer patients who survive more than the age group 50 years (93.4%), do not work (91.0%), have comorbidities (92.8%), have anemia (96.9%), early stage (94.8%), the location of clinical symptoms in the right breast (94.0%), early age detected/detected > 40 years (92.6%). Conclusions: Age, education level, employment status, marital status, comorbid status, anemia, disease stage, location of clinical symptoms, and early age of breast cancer detection are determinants of breast cancer survival.