His research focuses on the molecular genetics studies of stroke, both monogenetic stroke and complex stroke. He is also interested in pharmacogenomics about stroke. He studied as visiting scholar at DDC clinic and Case Western Reserve University in USA from 2010 to 2011. Additionally, Wei is a member of Neurology Genetic group of Chinese Medical Association, a member of Neuro-genetic Committee of Chinese Medical Doctor Association, and a member of Genetic Committee of Chinese stroke Stroke Association.