But the duo claim they have been forced onto the streets due to their relationship and can not approach Government shelters for fear that they will be split up.
Previously, it was reported that Ng was living with her mother Elaine in Hong Kong. The 64-year-old movie star has never had a solid relationship of any kind with the teen.
The two say they found temporary shelter with a friend, but they can't continue to stay there.
"Hi, I'm Jackie Chan's daughter, Etta, and this is my girlfriend, Andi", she says in the video. "We pretty much slept under a bridge".
The couple says despite going to the police, food banks and local LGBTQ centers, they have received no help.
"We don't know what to do at this point", she said. "We don't know what to do at this point". 'I've asked all my family for help. The 18 year old is apparently in a same sex relationship with 30 year old Andi Autumn.
Hong Kong website Coconuts reported that Elaine Ng called the video "wrong", and was upset that her daughter was essentially begging for money online from her estranged father.
"However then you definately got here alongside and proved me improper, I deserved to be pleased, love and be cherished", she wrote of her accomplice.
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'They shouldn't film a clip telling others they are broke and who Etta's father is.
Elaine said the duo should not blame their parents, as "many people in Hong Kong get paid low wages but still go to work". If they don't have work, then they'll film these videos to complain about their parents?
Jackie's daughter, whose full name is Etta Ng Chok Lam, has been dating Canadian social media influencer Andi Autumn since February 2017.
In 2015, Etta confirmed that she was not "angry" with her father, and did not wish to see him because she didn't need him.
She added, "He never existed in my life. I will never regard him as a father", she said at the time.
Jackie also has one son, Jaycee Chan, with his Taiwanese actress wife Joan, to whom he has been married for 35 years.
'We had tried to ask Jackie Chan for money but he said he wouldn't "give us a single cent".
Chan has acknowledged his affair, but has said little, if anything, about the child who resulted from it.