The article takes up the issues of the basic approaches to the formation of indicators of the level of adaptation of logistics systems. The concrete indicators of the level of adaptation, by which it becomes possible to analyze the degree of accordance of organizational structures of logistics systems and external environment, are proposed. Theoretical analysis. For the analysis of the level of adaptation properties it is necessary to develop indicators that directly reflect the process of adapting logistic systems to changes in the external environment. In practice, it is important to know the unorganized logistics system, as it gives the operational information about the quality of the organization and function of the elementary concepts of disorder. Disorganization – is generalized for the considered number of possible situations, timing characteristics of disorder, weighted by a factor of importance (in the sense of «inferiority») of its manifestation in relation to certain performance of the system. The results of the study. The paper shows the indicators that allow to analyze the institutional structure of logistics systems and the external environment. The target entropy is considered as the mathematical model of the process of adaptation of logistical system to the working conditionals. Index organization is marked out as a criterion for assessing the degree of adaptation of logistic system to the (external) environment. Conclusions. Disorganization of operation is the result of the impact of the environment on the control object, while the organization is a quantitative measure of the ability to adapt to the effects of environmental factors and can be also offered as a criterion for assessing the level of adaptation of the logistics system to disturbing influences of the environment.