Galaxy Railway 999 is a bit like the development history of human civilization and a bit like the observation of human society. The story expresses the author's different views and feelings through the protagonist riding the 999 Galaxy Railway and crossing different civilizations of various planets, which is a common technique used by writers like Osamu Tezuka and others at that time: short stories express profound observations.

China has produced another cartoon version of Galaxy Railway 999. The plot is relatively simple. Shorten the distance of the train from the earth to the mechanical home planet to all the planets in the solar system, and reveal the true identity of Medell, the adopted daughter of the mechanical queen! And the reason why she wants to take Tielang away is because the mechanical queen took a fancy to his body as part 8888 of the mechanical home planet. With the help of her father, Crystal Kelly, whose soul is locked by the Queen, and all the parts on the home planet, Tielang and Medell defeated the mechanical home planet, destroyed it and returned to Earth by train 999.