Short administration periods of a health ministry can jeopardize the implementation and effectiveness of state policies due to changes in management orientation, altering the natural learning process, or other factors. The aim of this article was to determine and compare the tenure length of the ministry of health in Peru, describe its characteristics and discuss its relationship with public health achievements. Between 1935 and 2021, the average tenure was of 13,7 months and the median was 11 months, the longest was found to be 67 months, by Constantino Carvallo, and the shortest was one day, by Javier Correa. The length of ministerial tenure in Peru has a wide range of variation (1 day up to 67 months), it is shorter compared to that of other countries and is decreasing since 2016. Although longer tenures would not be sufficient to guarantee health achievements, it might contribute to the sustainability of health-related actions and have a positive effect on long-term policies.