AAPPS-DPP is holding 4th annual conference in Jeju, Korea in 2020. Asia-PAcific Region is growing very rapidly in science and technology. Cooperation of physics program in this region is quite important. AAPPS-DPP2020 is a plasma physics conference under the authority of AAPPS-DPP for scientific discussions on plasma physics. This conference should be physics oriented and provide interdisciplinary and in-depth discussions among and in various fields of plasma physics and application.