Purpose: If the duties of the security police are carefully examined(the police officer in charge of personal protection), the security police give priority to personal protection in accordance with the 「Act on the Protection and Settlement Support of North Korean Refugees」. At the same time, they are in charge of various roles, such as job placement, provision of education opportunities, and support through partnerships with welfare and social organizations for their successful social settlement while performing their duties. In recent years, as changes in the IT environment bring about changes in the security paradigm, such as the change and diversification of security threat measures, there has been a growing need to change the role and function of the security police to meet new security demands. Accordingly, this paper seeks to explore the paradigm of the security police required in the current era and discusses the role conflict and its direction caused by duties that the security police in Korea should essentially perform with focusing on the working period. Method: The subjects of the study are 91 security police officers who had duties related to North Korean de-fectors. For research analysis, statistical verification was performed using the SPSS 23.0 Program. First, frequency analysis was performed to determine the general characteristics of the survey subjects, and Cronbach's α coefficient was calculated to verify the reliability of the questionnaire. Lastly, a One Way ANOVA was conducted to find out the difference in role conflict according to the total police duty period and the security department duty period. Results: As a result of analyzing the difference in role conflict according to the total police duty period, it was found that police officers who have served for more than 20 years are generally more aware of their responsibility for roles than police officers who have been in office for less than 10 years. In addition, as a result of analyzing the differences in role conflict according to the security department's working period, it was found that police officers who worked in the security department for more than 10 years had higher mission and goals for their duties than police officers who had less than two years working experience in the security department. In addition, it was found that security police officers who worked in the security department for more than 6 to 10 years were also more responsible for their roles than security policemen who worked for less than 2 years. Conclusion: It is necessary to study the organizational culture to reduce stress and role conflict according to the demands of various roles of the security police and to efficiently perform duties. For these reasons, it is hoped that studies will continue to be conducted to comprehensively examine the factors that affect the job, such as job satisfaction, stress, and role conflict of security police according to the required job with interest in the security police's job and the goal of the police organization in the following study.