In the movement against the Korea-Japan agreement that unfolded between 1964 and 1965, not only students and opposition parties, but also intellectuals, especially university professors, emerged as the main actors of the movement. At the time, professors participated in the movement against the Korea-Japan Agreement in the form of a ‘statement’ by the ‘professor group’. After the Korea-Japan Agreement was ratified by the National Assembly, the Park Chung-hee government used physical force to massively suppress universities that had stood up to it. In this process, some professors along with students leading the movement were stigmatized as ‘political professors’ and expelled from the university. In particular, there were many professors who were deeply involved in the Sasanggye and the Dong-A Ilbo , which were the most critical of the Park Chung-hee government at the time. The participation of professors in the movement against the Korea-Japan agreement and the resulting ‘political professor’ crisis later became a turning point in which the Park Chung-hee government to systematically and permanently control professors in the name of ‘normalization’ of universities.