This article analyzes evaluation capacity-building based on the case study of a State Health Secretariat participating in the Project to Strengthen the Technical Capacity of State Health Secretariats in Monitoring and Evaluating Primary Healthcare. The case study adopted a mixed design with information from documents, semi-structured interviews, and evaluation of primary care by the State Health Secretariat in 2008-2011. Process analysis was used to identify the logical events that contributed to evaluation capacity-building, with two categories: evaluation capacity-building events and events for building organizational structure. The logical chain of events was formed by negotiation and agreement on the decision-making levels for the continuity of evaluation, data collection and analysis by the State Health Secretariat, a change in key indicators, restructuring of the evaluation matrix, and communication of the results to the municipalities. The three-way analysis showed that the aim of developing evaluation capacity was achieved.