After the United Nations’ Sustainable Development Goals (SDGs) were approved in 2015, the transition to a circular economy (CE) model was implemented by many countries, gradually becoming a popular trend globally. From theory to practice, transforming economic models in other countries shows that institutions, with a focus on law, have a large and inclusive role and influence on the implementation process and results. Within the scope of this article, the authors present about the development and improvement of CE legislation in some countries and make some recommendations to develop and improve the law on circular economy in Vietnam.