The Fusion DEMO Program of Korea is a mega program consisted of phased three programs: DEMO Preparatory Program from 2009 through 2011, DEMO R&D Program from 2012 through 2021 and DEMO Construction Program from 2022 through the 2036. The DEMO R&D Program is further divided into three sub-programs: DEMO-Plant Design-Concept Study from 2012 through 2014, DEMO-Plant Design Study from 2015 through 2018 and DEMO Plant FEED (Front End Engineering Design) from 2019 through 2021 at the same time with initiating validation tests for the design methods.

Until 2011, preparatory works for DEMO, such as developing the strategic plans, defining a pathway to DEMO and initiating some R&D works necessarily required for defining the pathway, will have been carried out. In this paper, the R&D activities planned in the 2nd phase sub-program, with an overview of the strategic plans and preparatory works of the Fusion DEMO Program of Korea, are discussed.