The work is devoted to building a model of information support of decision-making in assessing of the activity of the Russian Emergencies Ministry employees. Tasks officials divided management functions (planning tasks; tasks of accounting, control objectives; the operational management tasks). Each of the tasks defined by the properties, and then performance. In the aggregate figures there are formed effectiveness criteria, carried out the valuation criteria according to certain rules and formed a generalized criterion of efficiency of solving the problem of the combined properties. As a result, it becomes possible to estimate the effectiveness of the division of tasks. For further evaluation it is necessary to determine the effectiveness of a set of properties for the relevant tasks assigned to the control functions. For a given performance indicators determined by the outcome of the operation, which will allow to evaluate the effectiveness of the official. To date, evaluation was carried out primarily by property “Efficiency”. The presented method allows to make multi-criteria assessment. Thus, the method makes possible to assess the effectiveness of the performance of any official task SLM. After determining of the effectiveness of the implementation of all the tasks on providing a level it can be estimated effectiveness of the implementation of tasks by officials at higher levels. For the mathematical modeling are invited to provide information system support in assessing the activity of CMC employees of Emercom of Russia as a system of heterogeneous elements, which examines the activities of the official in the regime daily activities and in emergency mode. Next it’s compiled state graph elements. State system count consists of two subgraphs - subgraph of states elements of the system in the mode of daily activities and the subgraph of states in emergency mode. The developed model is a system of differential equations for the average number of states. Using the developed mathematical model, it is possible to evaluate the activities of officials of Emercom of Russia controls in the mode of everyday activities and emergency mode. The results obtained are the initial data for further automation of decision support system for evaluation of the Russian Emergency Situations Ministry officials controls.