Since the September 11, 2001 terrorist attacks, countries around the world are doing their best to actively prepare for and eradicate terrorism, including reorganizing terrorism-related laws and terrorism policies to respond strongly to terrorism. is responding to. Recently, after COVID-19, the number of foreigners entering the country, including foreign travelers, students, and foreign workers, is increasing, and the number of foreigners settling in Korea due to international marriage is increasing, raising concerns about spontaneous terrorism and terrorism caused by international terrorist groups. Although there have been no incidents in which international terrorist groups intervened in domestic terrorism, cases of support for terrorist groups by foreigners residing in Korea are continuously being discovered, and there are concerns about the emergence of advanced attack methods such as attacks targeting specific or unspecified people or improvised explosive devices, and North Korea's There are also concerns about rear-end terrorism using unmanned aerial vehicles and powered paragliders. In addition, signs of terrorism are appearing in many places in the country, such as conflict over the construction of a mosque, amplification of social conflict such as anti-war protests related to the war in Ukraine, and North Korea's distribution of waste balloons. This paper conducted a literature study by collecting domestic and foreign papers, publications, and response plans issued by each organization, and analyzed the data using academic materials, data from various ministries such as the Counter-Terrorism Center, the National Intelligence Service, the Ministry of Foreign Affairs, the Ministry of Justice, and the National Police Agency. did. The problems with the domestic terrorism response system derived from this can be summarized in four points. First, it is necessary to form a joint countermeasures headquarters when two or more complex terrorist attacks occur. Second, it is necessary to establish new restrictions on entry into the country for persons at risk of international terrorism. Third, there is a need to expand the scope of deployment of anti-terrorism units. Fourth, there is a need to establish a system for career officers specializing in terrorism, etc.