Abstract The structure of the government of different societies, while existing differences, have the same functional but different qualities, and in order to resolve the problems, the relations between the institutions of the state must have a good mechanism. Since the Viable Systems Model provide a tool for designing and diagnosis the structure of systems, this study aimed to identify the structure of the government and then diagnosis this structure. The goal is to investigate the current Government structure from a systemic view, and using a scientific method followed by the application of the Viable Systems Model framework and the Jackson's three-stage method. The structural elements , the duties and relationships between them are identified and diagnosed. After reviewing and comparing the structure of the structure, this structure detected partially Viable.