In recent years, there has been a phenomenal growth in procurement research towards a circular economy (CE). However, to date, there is a lack of systematic synthesis of this body of knowledge hindering theoretical development. This work aims to investigate the current state of circular procurement (CP) in both the public and private sectors through a systematic literature review. To this end, this paper reviews the relevant studies published between 1998 and 2021 and identifies three themes: antecedents, practices, and performance (outcomes). New subcategories for the themes are also presented. Based on the structured analysis, we propose a conceptual theoretical model of CP and future research directions.

近年来，针对循环经济 (CE) 的采购研究取得了显着增长。然而，迄今为止，缺乏对这一知识体系的系统综合，阻碍了理论的发展。这项工作旨在通过系统的文献回顾来调查公共和私营部门循环采购 (CP) 的现状。为此，本文回顾了 1998 年至 2021 年间发表的相关研究，并确定了三个主题：前因、实践和绩效（结果）。还介绍了主题的新子类别。在结构化分析的基础上，我们提出了CP的概念理论模型和未来的研究方向。