Introduction. The article is devoted to the formation of identification technique of statistical dependences among the existing types of industrial activity in the Republic of Mari El from production and financial indicators of their functioning according to the allocated classes in terms of production volumes and profitability level. The application of induction method allows revealing concrete impact of each factor on the activities of industrial enterprises, to characterize the differences in the level of production and financial state between the types of industrial activity. Purpose: modeling of production and financial indicators in classification groups of industrial enterprises of the Mari El Republic. Materials and methods. The research was carried out on the basis of Maristat statistical data using regression analysis method, allowing us to obtain inductive statistical dependences of the region industrial sphere functioning in the context of classification groups of their production volumes. Results, discussion. As a result of modeling of a balanced financial result in the classification groups factors were identified the variation of which has a direct impact on the change of the effective trait. So, in the first cluster change of balanced financial result is influenced by change of producer price index and profitability of the sold goods; in the second cluster – change of profitability of the sold goods, return on assets and production index; in the third classification group – a change in return on assets and producer price index. The least profitable sectors include the sectors of the third cluster: extractive industries; textile and clothing production; manufacture of leather, leather products and footwear; chemical production; manufacture of rubber and plastic products; production of other non-metallic mineral products; production of vehicles and equipment; other production. Conclusion. The analysis of the constructed models allows to reveal the most essential factors determining the effectiveness of industrial enterprises in the region, which allows a targeted impact on these indicators in the formation of production and financial programs for the prospective development of industrial activities of the Mari El Republic in order to increase the volume and quality of manufactured products.