Background: The National Policy of Comprehensive Women’s Health Care was implemented more than two decades ago, and the monitoring of potential benefits should be explored. Menopause is a period of life for which there are prevention and health promotion actions carried out by the government’s all-encompassing sole Unify Health System (UHS) and factored into Brazilian policies. It is thus our purpose to identify menopausal women’s main causes of death, as well as the mortality trend of such causes, especially after PNAISM implementation. Methods: This is an ecological study with secondary data analysis conducted by the Setor de Atenção Primária, Disciplina de Ginecologia, Departamento de Obstetrícia e Ginecologia da Faculdade de Medicina da Universidade de São Paulo from 2018 to 2019. Data were retrieved from the Brazilian Health Department by accessing the mortality information system of the IT Department of SUS between 1996 and 2016, divided in two periods 1996 to 2004 and 2005 to 2006 according to implementation of the National Police. The data included the death records of Brazilian women aged 35 to 64 years who had a precise diagnosis (ICD-10). Trend and differences between periods were evaluated by linear regression. The significance level was set at 5%. Stata 11® (StataCorp, LCC) was used. Results: Menopausal women’s main causes of death were the circulatory system diseases (29.39%, 736,972 deaths), neoplasms (26.17%, 656,385 deaths), respiratory system diseases (7.29%, 182,812 deaths), endocrine (29.39%), nutritional, and metabolic (6.81%, 170,881 deaths) diseases, and external causes of morbidity and mortality (5.49%, 137,674 deaths). Implementation of PNAISM led to increasing reduction in mortality from circulatory system diseases (β=-0.58; 95% CI, -0.68 to -0.48; r²=0.93; p<0.001), but not to any significant changes in neoplasm mortalities (β=0.07; 95% CI, -0.01 to 0.15; r²=0.22; p=0.070). Conclusions: The leading causes of death among menopausal women are circulatory system diseases, neoplasms, respiratory system diseases, nutritional, metabolic, and endocrine diseases, and external causes of morbidity and mortality. The trend of mortality rates among menopausal women, following PNAISM implementation, was a decline in circulatory system diseases and in nutritional, metabolic, and endocrine diseases, with no changes for neoplasms and respiratory system diseases.