The 16th Annual Conference of Korea Robotics Society (KRoC 2021) was held successfully at Phoenix Pyeongchang, Gangwon-do from May 19th to 20th. Prof. Jung Kim served as General Chair and greatly contributed to the success of the conference. Various programs were held, including 2 keynote talks, 2 special talks, 7 invited talks, 17 special sessions, and 2 workshops, etc. A total of 327 papers were submitted, including 109 general papers, 194 posters and 24 undergraduate student papers.