The article studies the characteristics of the behavior of complex technical systems that implement the property of functional stability of these systems. The mathematical model describing technological processes at the industrial enterprise is resulted, the definition of functionally stable production process of the industrial enterprise and the criterion of maintenance of its functional stability with use of pseudoinversion is formulated. The conditions for ensuring the functional stability of the technological process are given and practical recommendations for the application of these conditions for decision-making in the practical implementation of production processes are described. Ensuring the functional stability of production processes is now one of the most important tasks. Currently, many different methods have been proposed to ensure a high level of functional stability, but this issue requires constant improvement and development of new approaches. In order to improve and develop methods of organizing production processes that ensure the functional stability of technological processes through the implementation of individual strategy of operation of relevant production centers, an approach to the formation of management strategy of production center, which provides functional stability of the technological process. The individual strategy of planning of operation of technical systems depending on their actual condition taking into account features of the given concrete system is investigated.