A mother took her three-year-old daughter off the train and onto the platform to have a breath of fresh air at Xining Railway Station in western China, Joinfo.com reports with reference to China news.
But the girl then wandered back towards the carriage, and fell into the gap between the train and the platform.
It was about one minute before the train was due to leave the station.
The police immediately notified the driver to stop the train. Meanwhile, two passengers jumped from the platform and saved the little girl with the help of passersby.
Watch the video below: