Korea Institute of Nuclear Nonproliferation and Control (KINAC) remains dedicated to providing national and international training to train the workforce in the area of nuclear nonproliferation and security. INSA has also provided a number of nuclear nonproliferation courses for the public such as middle or high school students and teachers, senior government officials, NGOs in the field of nuclear energy, and so on. The recent trend calls for education with high field applicability. Additionally, as interest in nuclear nonproliferation has recently increased, the demand of the public for education is expected to be increased. However, since it is difficult for the public to access nuclear facilities, it is not easy to understand regulatory activities at nuclear facilities. Therefore, KINAC has developed Virtual Reality (VR) content to enhance the public’s understanding of nuclear facilities and on-site inspection activities of KINAC. VR technology is expected to be a new means that can enable the public to access nuclear facilities in spite of some “VR dizziness” usually called “Human Factor”. This paper introduces the composition and function of KINAC’s nuclear nonproliferation VR content for Hanaro Rx in nuclear nonproliferation courses for the public and seeks ways to optimize it based on a one-year operation experience.