With the rapid development of in vivo measurement techniques, gene and protein techniques, molecular imaging techniques, etc., precision medicine has become an important field to solve clinical diagnosis and treatment problems, lead medical frontier development and clinical translation research, and improve disease prevention and treatment. And it has been elevated to "National Development Strategy" of China. Suzhou Institute of Nanotechnology and Nano-Bionics, CAS-The Key Laboratory of Nano-Biological Interfaces of CAS will hold the second " Nano Health - In vivo Biometrics and Precision Medicine Forum" on 27th-28th October, 2021, Suzhou. This forum will invite well-known experts to introduce the latest developments in this field, and provide a platform for exchanges and demonstrations for people engaged in in vivo biometrics, molecular medicine, molecular imaging and clinical translational research.