On July 27, 1953, the signing ceremony of the Korean Armistice Agreement was held in Panmunjom, Kaicheng. According to the agreement reached by both parties, the chief representatives of the negotiating delegations of both parties will sign first.

At 9:30 a.m., eight officers from the Korean People's Army, the Chinese People's Volunteers, the "United Nations Army" and the South Korean Army wearing security armbands walked into the conference hall to guard. Subsequently, people attending the signing ceremony from both sides entered the hall through the designated east and west gates and took their seats. At 10 o'clock, General Nam Il, the chief representative of the North Korean and Chinese delegations, and Lieutenant General Harrison, the chief representative of the "United Nations Army" delegation, entered the signing ceremony hall and sat down at the conference table respectively. With the assistance of the signature assistants, the two chief representatives signed the nine Korean armistice agreements prepared by their respective parties, and then the signature assistants exchanged signatures at the same time. At 10:10, the signing ceremony ended and the commanders of both sides were sent to sign.

At 22:00 that day, Marshal Kim Il-sung, the supreme commander of the Korean People's Army, formally signed the "Armistice Agreement" and the Interim Supplementary Agreement in Pyongyang. The signing ceremony was attended by North Korean party and government leaders and senior generals of the People's Army.