Abstract: The study suggests a scientific approach to development of automatic system of prescribed temperature parameters maintenance in industrial facilities by means of designing mathematical support and software for a microprocessor system to enable the solution of a range of information processing tasks. A mathematical model has been developed as well as algorithms and programmes implementing the concept of autonomic temperature control in specialized industrial facilities based on artificial intelligence method with the use of fuzzy knowledge base, subsystems of logic output, adaptation and self-training. Its application allows to control prescribed temperature parameters in uncertain and quickly changing environment. The results of conducted optimization calculations ensure increased efficiency of soft and hardware tools being developed.