The post-epidemic economic recovery in 2022 will drive the continuous expansion of construction investment in major projects in various regions. Recently, the Changsha Public Resource Trading Electronic Service Platform released the bidding announcement for the construction planning and preparation project of the fourth phase of the Changsha Metro. The fourth phase of Changsha Metro was officially launched. According to the bidding situation, the planned construction period of Changsha's urban rail transit period is from 2023 to 2029. It is planned to study 6 main lines and 4 extension lines, with a total scale of about 280 kilometers.

In the 2020 edition of "Changsha Rail Transit Network Planning and Revision", the Changsha rail transit network is composed of two-level network layers of "Metropolitan Rail Express + Urban Rail General Line", and the express line skeleton is "one horizontal line". "Two verticals", the general wire skeleton is a general wire scheme of "ring + radiation". Among the 14 general lines, Lines 1-6 and 8 (loop lines) are the backbone lines, supporting the spatial layout; Lines 7, 9, 10, and 14 are supplementary lines; Lines 11-13 are the supplementary lines. Peripheral contact line.

In July 2021, the 14th Five-Year Construction Plan of Changsha Rail Transit Group excludes the first three phases and the adjusted related lines, but also includes the whole line of Line 8 and the first phase of Line 9 (the north bank of Laodao River - Datuopu Changzhutan Station ), Phase 1 and Phase 2 of Line 10 (High Speed Rail West Station - Shetang, Changsha County), Phase 1 of Line 11 (including Puxi - Youyi Road); and City Express Lines S1, S2, and S3 from Changsha West to Bachelor Section, S4 Line Longhua Station to Fangte Section. Editor / Xu Shengpeng