In this article, the author makes an analytical approach of business entities activities and its legal bases in the Republic of Uzbekistan and abroad. In particular, the role of business entities in the economy of the country, its share in the volume of gross domestic product (GDP) was analyzed in comparison with other foreign countries. Opinions were drafted on the legitimization of the activities of business entities, which led to the term “legitimacy” of various definitions and concepts of scientists. At the same time, the author has widely covered the role of Republic of Uzbekistan in the international rating of the World Bank “Doing Business” criteria and the reforms carried out in this area through the legalization of entrepreneurial activity of business entities. In the current period of the pandemic, measures implemented in Uzbekistan and a number of developed countries to support entrepreneurship and their activities were compared. Proceeding from the article, in the summary section, the author put forward some suggestions and recommendations on legislation in the field of legitimization of business activity.