The paper presents an analysis of various modern approaches to assessing the integration effects of countries in international practice regarding the quality of their development. The main goal of the study is to substantiate the economic feasibility of further development of the integration of the EAEU member states, within the framework of which the task was set to form a specific approach to assessing the quality effects of the economic integration of the EAEU countries from the standpoint of ongoing reforms, opportunities to improve the welfare of the population, the quality of life of the population, etc. The authors have carried out a comparative analysis of various quality parameters in relation to the transformational reforms carried out in the EAEU region in comparison with some post-Soviet countries, have analyzed the main characteristics of the Doing Business data, the dynamics of the Human Development Index, global competitiveness, quality of life, the Gini index, etc. The obtained results substantiate the fact that integration ties have a positive impact on the socio-economic development of the countries. Based on this analysis, some problems in the activities of the EAEU states regarding the development of integration processes have been highlighted, and they indicate that the Eurasian countries need the development of quality institutions; also, the shortcomings in the development of industry and the need to form value-added chains have been indicated. The conclusion has been made about the weakness of the institutional basis of the EAEU, and the possibilities for the development of integration processes for reforms in various areas of the economy. It is also shown that a quality assessment of indicators should be carried out over a longer period of reforms than the EAEU exists and can be supported by quantity methods, for example, predictive dynamics of the main macroeconomic indicators of the countries or other methods of economic and mathematical modeling.