| Three Han states |
Belonged to Byeonhan |
| Three Kingdoms |
Belonged to Geochilsanguk daejueng-hyeon |
| Unified Silla |
Belonged to the hyeon(village) under the Dongpyeong-hyeon, Dongnae-gun |
| Goryeo Kingdom |
Belonged to the hyeon(village) under the Yangju-gun |
| Joseon dynasty |
Belonged to Dong-myeon and Namcheon-myeon |
| 1914 |
Reorganization of the administrative districts, belonged to Seoha- myeon and Yougju-myeon, Dongnae-gun |
| April 1, 1936 |
The first extension of the administrative district of Busan, belonged to a branch office of Busan-Jin |
| October 1, 1942 |
Suyeong, Dongnae-gun and part of Haeundae were incorporated into Busan-bu, established Suyeong Branch office |
| August 15, 1949 |
Bu-system abolished, renamed as Busan city |
| September 10, 1953 |
Establised Daeyeon branch office, Busan city |
| January 1, 1957 |
Introduced Gu system, Reorganized Daeyeon branch office (6 dongs), Busanjin-gu and Suyeong branch office (3 dongs), Dongnae-gu |
| January 1963 |
Busan city was under direct control of the government (6gus and 7 branch offices) |
| October 1, 1975 |
Raised as Nam-gu (10 dongs) |
| May 1, 1988 |
The local government system was introduced (for 11 districts) |
| January 1, 1995 |
Busan was renamed as Busan Megapolis (15 districts and 1 gu) |
| March 1, 1995 |
Suyeong-gu was separated from Namgu |
