This study endeavors to provide a comprehensive examination of the current state of circular economy technology development and investment strategies in the context of enhancing the competitiveness of future Korean industries. This study utilizes the results of an analysis of the weaknesses and opportunities arising from the transition to a circular economy in six major industries. The study identifies areas of relative technological inadequacy in the field of circular economy in Korea based on the comparative analysis of the current technology development. New industrial areas were discovered in relation to technological advancement. This comparative analysis also led to the discovery of new industrial domains, necessitating a reevaluation of the inter-industry table and the reorganization of the entire industrial structure. Furthermore, the study examines the existing laws and regulations related to the circular economy, as well as those currently under legislative consideration, in order to identify potential amendments or enactments that could catalyze Korea's transition to a circular economy. In addition, the study proposes a legislative agenda and investment strategies to promote the transition of the six major industries