Defending champions Goyang KH was dissolved.
Runners-up Yangpyeong FC and promotion play-offs winners Chuncheon Citizen were promoted to the K3 League, while Dangjin Citizen were relegated from the K3 League.
The top two teams were promoted to the K3 League and the third and fourth-placed teams qualified for the promotion play-offs.
[3] On 3 July 2023, Goyang Happiness were dissolved due to their financial crisis and Korea Football Association decided to nullify Goyang Happiness' results.
The promotion play-offs final (K3 League relegation play-off) was contested between the 14th-placed team of K3 League and the winners of the first round.