Considering the multitude of actors in the public sector and the wide scope of government interventions, the coordination of actors is an important challenge to achieve the goals. However, this concept still has theoretical and conceptual ambiguities, which in turn have challenged its realization. To address the coordination challenge, three important questions should be clarified: What is the coordination of public sector activists? Why there is a need for coordination between public sector activists? And how can it be achieved? In previous studies, different answers have been given to these questions. However, there is a lack of a comprehensive approach to coordination, which combines the findings of various studies. In this research, an attempt has been made to provide a comprehensive framework for thinking about coordination in the public sector using the meta-synthesis method. For this purpose, after several stages of screening, 51 final documents were selected from more than 1000 documents, and by analyzing them in MAXQDA software, what, why, and how the phenomenon of coordination of activists in the public sector was identified in the form of a total of 7 main categories. The answer to "what this phenomenon is" was put in the form of three main categories: «Ratio of Actions Together To Achieve Common Goal», «Coordination Is A Continuum, Not A Dichtonomy» and «Dimensions Of Coordination». The answer to why this phenomenon is needed was put in the form of three main categories: «Prior Necessities», «Posterior Necessities» and «Coordination Costs». Finally, the answer to how to achieve it was put in the main category of «Creating A Clear, Common, And Valid Basis For Action».