Object of research are associations of industrial, financial and trading capitals for production and realization of final, which have a great importance for the national economy, according to state programs of economic development. The purpose of research - to elaborate well-grounded recommendations concerning optimal mutual economic relations between subjects of industrial-financial group (IFG) as well as between industrial-financial group s and the state in the transition period based on studying the process of organization of industrial-financial association engaged in production of final products and mutual economic relations which have appeared between subjects of the group. Methods and equipment of the research- dialectical methods of the congnition, the system approach, economical and mathematical simulation.Theoretical and practical results. Received contains in elaboration of the conception of optimal economic relations between subjects of industrial-financial groups and the state in the tran sition period from state economy to mixed economy of marked type; fact that conclusions and destribution of income, mechanizm of internal price formation may be used for preparation of technical and economic substations an organizational project of acertain IFG, signing general and mutual agreements between subjects of group about price the formation, planing, forming and distribution of general group funds.Novelty. Theoretical substantiation of the processes of IFG organization and studying a number of questions concerning provision of harmonized mutual economic relations between the head enterprise and enterprise engaged in productions of intermediate products and between financial subjects of the group. The most important results received in the process of investigation are: the role and the signification of industrial-financial groups as one of the most important factor of structural reconstruction of the economy of Ukraine in transition period have been determined; the recommendation of improvement of le gislative basis have been suggested which touch upon reduction of the state regulation of IFG organization restriction of final product output using of the bank capital in the group and enlargement of the list of privileges for the subjects when organizing the group; the model of capital formation and economic growth of the industrial enterprise has been elaborated which takes into consideration a wider circle of effecting factors, in particular the structure of dividing the enterprise's funds into financial and real investments, absorption by other firms(merging), a part of income for payment of dividends, etc.; a standard scheme of organizational structure of IFG has been developed which reflects inclusion of a number of subjects into the group, the joint activity of which allows to receive the effect produced in results of displaying the principle of diversification. The scheme is applied practically for all kinds of integration-technological formations including transnational ones; the typology of gro ups structures is offered which is built according to indications of technological interrelationships in production of intermediate and final products; the methodics is offered for determination of products output sufficient for maximization of income from realization of final product produced by the IFG, it is based on analysis of income change in relation to elasticity of demand for a product, rates of change of conditional-variable costs. The influence of taxation and rates of inflation is taken into consideration, zones of application of price formations variants for intermediate products produced by the subjects of IFG are defined, internal prices determined by calculation of a basic period; negotiated prices which consider a normal level of profitability, free market prices formed on the markets of intermediate products are defined;too. The spheres of application of price formation variants are defined under conditions of varying demand elasticity mechanizm for distribution of income from realization o f a final product produced by the grope between general grope funds, the subjects and the head enterprise is offered. It is a criterion of labour intensity of production of intermediate and final products as indicator which is least of all influenced by external factors this distinguishes this mechanizm; the recommendations for the group to pursue the investment policy have been worked out which include the meansures carried out in the short and long run period; the conditions for increase in the resource basis and raising profitableness have been formulated which permit the commercial banks to be initiators in creations of IFG and the recommendations are also suggested concerning improvement of interrelations between the bank and other subjects of the group, the main point of recommendations is perfection of security, guarantee and insurance practice in providing which bank credits, mutual acquiring of shares, a predominent right of a member of IFG to bank creaditing.The area of application: industrial-finan cial groups.