The line has been approved by the Executive Yuan in March 2022, and construction started in 2023.

[4][5] On 14 February 2017, four members of the Legislative Yuan representing Kaohsiung and affiliated with the Democratic Progressive Party, namely Liu Shyh-fang, Lee Kun-tse [zh], Lai Jui-lung [zh], and Hsu Chih-chieh had held a joint press conference unveiling the new draft of the route for the yellow line and asked the Executive Yuan to approve the plan, whose bid was later agreed and approved by the yuan to be included in on March 23.

[6]。 On March 27, a few days after the approval of the Executive Yuan's approval, the local MRT bureau submitted the feasibility study of the yellow line to the authorities concerned of the central government.

[7] The yellow line has two start points from Cruise Terminal and MRT Cianjhen Senior High School Station respectively and an end point at Niaosong Depot, Niaosong District, Kaohsiung City.

25 sets of 3-car Automated Trains.The trains will be produced by Stadler Rail in St. Margrethen.