Xinhua Ma, Professor at Particle Astrophysics Center, Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS). He has worked in IHEP since 1996. His main works were on particle astrophysics including study of cosmic ray, high energy gamma ray and dark matter. He has participated in several collaborations of international experiments including L3 C, ARGO-YBJ, DAMA, PRISMA and LHAASO in succession.