| Native Name: | 上海地铁21号线 |
| Native Name Lang: | zh |
| Other Name: | Line 24 (between 2014 and 2016) |
| Type: | Rapid transit |
| System: | Shanghai Metro |
| Status: | Under construction |
| Locale: | Pudong, Shanghai |
| End: | Liuchen Road |
| Stations: | 28 |
| Operator: | Shanghai Maglev Development Co., Ltd. |
| Depot: | Liuchen Road Depot |
| Stock: | Class A 6-car trains |
| Tracklength: | 48km (30miles) |
| Tracks: | 2 |
| Electrification: | Overhead lines (1500 volts) |
| Speed: | 100km/h |
| Map State: | collapsed |
Line 21 will be a future subway line on the Shanghai Metro. It will run in a north–south direction through Pudong, connecting Gaohang in Waigaoqiao to the Disney Resort. The first phase will be about long with 10 stations.[1] Stations will have passing loops to allow for express and local stopping patterns.[2]
The line was announced by the Municipal government in 2016.[3] [4] Previous plans in 2014 designated the Disney Resort — Guanglan Road section as Line 24.
| Segment | Commenced | Opened | Length | Station(s) | Name | Investment | |
|---|---|---|---|---|---|---|---|
| Dongjing Road - Tanghuang Road | 4 Jan 2022 | exp 2026 | 27.9641NaN1 | 17 | Phase 1 | 36.956 billion yuan | |
| Tanghuang Road - Shanghai East Railway Station | end-2023 | exp 2027 | 141NaN1 | 5 | Phase 2 | ||
| Shanghai East Railway Station - Pudong Airport T3 Terminal | exp 2028 | 21NaN1 | 1 | Phase 2 | |||
| Dongjing Road - Wusongkou International Cruise Terminal | planned | 9 | Phase 3 | ||||
| ||||||||||
| 0.0 | Baoshan | Phase III | ||||||||
| Pudong | ||||||||||
| (planned) | ||||||||||
| ● | ● | 0.0 | Pudong | Phase I 2026 | ||||||
| ● | ● | |||||||||
| ● | ｜ | |||||||||
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| ● | ｜ | 28 | ||||||||
| ● | ｜ | Pudong | East extension (Phase II) 2027 | |||||||
| ● | ｜ | |||||||||
| ● | ｜ | |||||||||
| ● | ｜ | |||||||||
| ● | ● | Shanghai East railway station | (planned) (u/c) | |||||||
| ● | ● | 44 | East extension (Phase II remaining section) 2028 | |||||||
The line will interchange with various lines in Pudong at the following stations: