The article deals with the issues of peculiarities of modernisation of legislation in the field of trade and economic activity in the context of European integration.It is noted that economic and trade activity is the industry which is subject to active modernisation, taking into account the requirements of the Association Agreement. The author concludes that the obligations to adapt Ukrainian legislation to EU legislation in trade have changed due to the fact that a number of EU acts have been amended or repealed, and therefore it is now important to implement the novelties of EU legislation in the period after ratification of the Association Agreement.
 The term «economic and commercial activity» used in the Commercial Code of Ukraine essentially means trading activities carried out by business entities. Expanding the scope of digitalisation of economic and commercial activities is another vector of European integration.
 The food supply chain is vulnerable to unfair trade practices due to a sharp imbalance between small and large agricultural market operators. In Ukraine, we see unfair practices when large retailers dictate the terms of market entry and payment for products. Therefore, the implementation of the provisions of Directive 2019/633 of the European Parliament and of the Council of 17 April 2019 on unfair trade practices between undertakings in the agriculture and food sectors is important for Ukraine.
 In general, EU legislation is quite dynamic, especially given the direction of EU policy towards the development of a green economy and digitalisation, and a number of provisions are being adopted to improve trade in these areas. For Ukraine, an important task is not only to adapt national legislation to the existing EU acts, but also to take into account the legal policy ideas that are actively discussed and developed in the EU, in particular, the provisions on harmonisation of business law.