[Objectives] Understanding migratory rhythms, routes and habitat preferences of migratory birds is crucial for developing bird conservation strategies and holds significant importance for the conservation of migratory birds. [Methods] In this study, a Common Greenshank Tringa nebularia was captured in October 2020 in Leizhou Bay, Zhanjiang, Guangdong Province, China, and equipped with a satellite tracking device to record its activity. Starting on October 23, 2020, and continuing until October 16, 2021, this tracking provided activity data of the Common Greenshank every 6 h, including time, location, instantaneous speed, and altitude. The satellite tracking data was used to identify wintering sites, spring migration routes, breeding sites, and autumn migration routes of the Common Greenshank. [Results] The Greenshank wintered in Leizhou Bay and began its spring migration on May 15, 2021. It passed through Poyang Lake, Bohai Bay, and Hulun Lake, China, completing the migration to the Viluy River basin in the Sakha Republic, Russia, in 28 d, covering approximately 5 076 km. The autumn migration started on July 16, 2021, passing through locations such as Hulun Lake, Bohai Bay, and the Yangtze River Estuary, reaching Leping City in Jiangxi Province on October 13, and losing signal on October 16. This autumn migration lasted for 89 d, covering approximately 4 186 km (Table 1). During the spring migration, the bird had 8 stopover sites, and during the autumn migration, it had 5 stopover sites. Energy replenishment sites included the Poyang Lake area, Xilamulun River, Hulun Lake, Bohai Bay, and the Yangtze River Estuary (Fig. 1). During both spring and autumn migrations, the Common Greenshank primarily flew at night. Single flight distances range between 88 to 1 613 km (Table 2). The instantaneous flight speeds range from 73.2 to 112.6 km/h, and the instantaneous flight altitudes range from 572 to 2 386 m. [Conclusion] This study reveals a nearly complete migratory path of the Common Greenshank throughout a migration cycle, providing direct evidence for discovering and understanding the migratory routes and important stopover sites of this species along the East Asian-Australasian Flyway.