Born as a son of a poor boatman in Seongjae-ri, Bupyeong-myeon, Gyeonggi Province, and a short childhood in Bucheon-gun, Gyeonggi-do, he later grew up in Incheon, Gyeonggi-do. His father worked as a boatman and later ran an inn. After graduating from ordinary school, he went to Incheon High School of Commerce in Gyeonggi-do. While attending Incheon High School, he joined the March 1st Movement in 1919 and was expelled. After getting a job at a factory, she became a labor activist by resentment in a poor working environment. Then, in 1923, he joined the Youth Alliance of the Communist Party of Korea.
First stages in politics
In 1924, he participated in the founding of the 1st Chosun Communist Party and joined the Chosun Ilbo in September of the same year to become a reporter. In September 1925, when the Communist Party of Korea was founded under the leadership of the Hwayo Association, he joined the Chosun Ilbo as a journalist. After that, he worked as a labor movement and served as the central member of the Korea Labor Federation. After that, he was arrested in 1926 for being related to the organization of the Communist Party and was released. n 1930, in Busan, Park Jang-song, Ahn Young-dal, and Kim Hyung-yun were arrested while attempting to produce and distribute a flyer called "Strike to the Combat Ship's Compressed and Exploited Class" underground. It was named as the main proponent of the Busan Anti-Half-Day Incident. In 1931, he campaigned to rebuild the Communist Party of Korea with Park Heon-young and Kim Dan-ya, but was arrested and frustrated. After that, he served in the Seodaemun Prison for 4 years. In 1937, he was arrested for the 4th Korean Communist Party Youth Alliance in Hamhung, Hamgyong Province, and placed in jail until 1939. Later, in 1941, he was active in and changed.
After liberation of Korea
After the liberation of August 15 in 1945, he became the 2nd secretary of the Communist Party of Janganpa, but returned to Pak Hon-yong on August 16, when he re-unified and re-established the Communist Party of Korea and joined the founding committee. In September 1945, he was elected to the Political Bureau of the Reconstruction of the Communist Party of Korea and served as Deputy General Manager of the Central People's Committee of the People's Republic of Korea. In November 1945, he was elected to the Central Committee of the Communist Party of Korea. In early 1948 he was arrested by the U.S Military Government, but managed to escape in August 1948, and went to the north of the 38th parallel with Ho Hon for the North-South negotiations and stayed there.
When the Korean War broke in June 1950, he went south along with Kim Il-sung and was elected chairman of the Seoul Metropolitan People's Committee on June 28. After that, he became Mayor of Seoul and served as Chairman of the Seoul People's Committee and Mayor of Seoul. As chairman of the Seoul People's Committee, he directed the abduction of Kim Kyu-sik, An Jae-hong,,, and, who were not able to escape from Seoul.
Downfall
He was appointed chairman of the People's Censorship Committee in 1952, but was arrested in October 1952 for accusations of attempting to overthrow the government by the Kang Kon Military Academy, a training center for the guerrillas, and was charged with anti-party sects and US spies the following year. In March 1953, he was dismissed as chairman of the People's Censorship Committee.