Through the study of the UK government's support policies for SMEs' foreign trade, this paper has drawn inspiration for China's support for SMEs' foreign trade. The UK is a major trading country and SMEs play an irreplaceable role in foreign trade. The fact that SMEs occupy such an important position in foreign trade is closely related to the government's support. This paper examines the legal, fiscal, financial, taxation and other aspects of support for foreign trade of SMEs. The insights obtained mainly revolve around information management, strengthening the establishment and guidance of the legal system, and implementing the actions of support institutions, which show that China should pay more attention to the implementation of actions, laws, and information management in supporting the development of foreign trade of SMEs in order to truly support the development of SMEs.