Abstract: Integrated PET/MR is one of cutting-edge technologies in functional and molecular imaging. A review of the current development status of integrated PET/MR products can provide inspiration and promote the development of related fields. This study introduced the technical characteristics and research and development difficulties of integrated PET/MR products from both hardware and software aspects, summarized the publication of English and Chinese papers related to the clinical application of PET/MR products from 2008 to 2022, analysed the differences and current status of clinical application of integrated PET/MR products at home and abroad, and pointed out the development status and direction of integrated PET/MR products in China. Finally, the development of integrated PET/MR products was discussed in terms of technology, clinical application prospects, and market strategies.