This study was conducted to find out the factors affecting the stages of behavioral change about GMO(n=202 university students). 52.0% of the respondents had no experience in GMO education, the stages of pre-contemplation and contemplation were 35.6% and 29.7%, respectively. Experience and awareness on GMO were the highest at 8 6.6% and 5 1.5%, respectively, and 5 5 % of the respondents did not know about the implementation of the labeling system. Positive and negative perceptions on GMO score were 3.41 and 3.22, respectively. The need for the full labeling system of GM foods was 56.4%, the intention not to pay when the price rises due to the system was 70.8%. Regression analysis of factors affecting the stages of behavioral change showed health interest(t=2.10, p<0.05), educational experience(t=2.81, p<0.01), knowledge score(t=2.260, p<0.05), and negative perception(t=2.13, p<0.05). The results of this study suggest that in order to increase the stage of behavioral change in GMO, it is necessary to raise interest in health and knowledge and have the correct perception through GMO education