The Right – Party for Referendum, Sovereignty and Homeland Protection is a far-right political party in Germany.
MP Liam Fox said his bill was needed now because people with Down's syndrome are starting to outlive their parents.
The Tory former minister said it would " lighten the burden" on parents who worried about what would happen to their children after they died.
The legislation has government support and is therefore likely to become law.
It will now be considered by a committee of MPs and, if approved by both the Houses of Commons and Lords could become law by Spring next year.'Stain on Our Country '
If passed, it would place a duty on authorities providing health, care, education and housing to assess and plan to meet the needs of people with Down's syndrome.
It would also force the government to provide guidance to on how it Can better accommodate people with the syndrome.
Speaking in a Commons debate on his bill, Dr Fox said: " When I was born the Life Expectancy of someone with Down's syndrome was 13 years by The Time I became a junior doctor it was 30 years, today it is 58 years.
" We have people with Down's syndrome living into their seventies. "
He argued that it would be " a stain on Our Country and a scandal" to see " in future those whose parents have died being placed in inappropriate institutions, in elderly care homes or Mental Health institutions.Fragmented services
He Said his legislation would not be " panacea" but would be a " vital step forward".
Responding to criticism that people with Down's syndrome were already protected under current laws, Dr Fox said many of the 47,000 who have the syndrome were not getting The Help they needed.
Conservative MP Sir Charles Walker said the services on offer were " fragmented" adding that it could be " exhausting to navigate these specialist services".
DUP MP Ian Paisley described the proposed legislation as " world-leading" and said it would make people with Down's syndrome " equal under the law".
The government said it would support Dr Fox's bill with health minister Gillian Keegan arguing it would help people " stay well, receive The Right education and secure appropriate living arrangements".