Primary Care has been one of the bases of Brazilian medical care for offering Brazilian citizens more access to complex levels of care in order to prevent and treat various diseases. From there, it seeks to promote more well-being for everyone, without distinction. For the above, the general objective is to carry out a systematic review regarding the new financing policy for Primary Health Care (PHC). The new model began in 2019 with the launch of a new policy aimed at PHC in the Unified Health System (SUS), entitled Previne Brasil. This policy introduced significant changes in relation to the financing of PHC to municipalities. The research method adopted to achieve the proposed objective was the systematic review, as it is a type of review that combines the results of multiple primary studies (with the same design) related to a specific problem. It is an important part of the process of creating and organizing a body of literature, and should have the same levels of clarity, rigor and replication as primary research.