Police and fire services were called for assistance from 3.16 pm (0716 GMT) after the Disney ride Hyperspace Mountain stopped working. No injuries have been reported and there was no smoke or fire at the scene, a police spokeswoman said.
The passengers were removed from the ride by 4.16pm (0816 GMT) a fire services representative said. Around 40 firefighters had been deployed to Disneyland, located by Hong Kong's international airport, he said.
Disney did not immediately respond to requests for comment.
The Hyperspace Mountain ride is described on Disney's website as rocketing into a Star Wars battle. Key features include big drops and being plunged into darkness.
It was due to close for routine maintenance and inspection, from Feb. 26 to March 1, 2024 according to a notice on the website.
