This review was conducted to synthesize and critically appraise the literature on knowledge, attitudes, understanding, perceptions, and expectations of mental health professionals (MHPs) and mental health professional (MHP) students' regarding recovery. A systematic search in Scopus, CINAHL, PsycINFO, Web of Science, Medline, and Embase as well as Google scholar and web-based repositories was conducted. The searches were conducted using a combination of key terms: "mental health professionals", "students'', 'knowledge', "understanding", "perception" "attitude", "expectation", "recovery". After screening and quality assessment, the review included 29 studies (18 quantitative, 8 qualitative, and 3 mixed-method studies) published in English, from January 2006 to June 2019, and was analysed systematically using a mixed-method synthesis. The findings revealed that there is increasing evidence (especially among MHPs) of knowledge, attitudes, understanding, perceptions, and expectations regarding recovery. However, there are disparities in how MHPs perceive and understand recovery. While some understood it to mean a personal process, others explained it as a clinical process. In addition, there was limited knowledge among the MHPs and MHP students regarding the nonlinearity nature of the recovery process and expectations regarding recovery. The implications from these findings are the need for more in-service training for MHPs, and examination of the curriculum used to educate MHP students. In particular, they should be sufficiently informed about the nonlinearity nature of the recovery process and how to develop hopeful and realistic expectations for consumers throughout the recovery process. The review was preregistered with PROSPERO (Registration No: CRD42019136543).