Volker Kauder, parliamentary leader of Angela Merkel’s CDU has reportedly agreed with coalition parties the Social Democrats ad Christian Socialist Union to approve the law as soon as possible.
Justice Minister Heiko Mass made the draft proposal to invalidate all marriages involving a partner younger than 16 years old.
According to German newspaper Süddeutsche Zeitung, Federal Ministry of the Interior figures say there are 1,475 married migrant minors in Germany – 361 of which were reportedly younger than 14 in July 2016.
In 664 cases, the minors are Syrians and mostly girls.
The legal age of marriage is expected to be raised to 18.
Currently youngsters can get married at 16 providing they have parental consent.
But the coalition faces challenges with critics saying exceptions should be allowed in certain cases to protect children of child marriages and inheritance and maintenance claims, over fears child brides would be unable to return to their country of origin if their marriage was deemed illegal.
CDU faction vice-chair Stephan Harbarth said: “It is simply necessary to go this way for the protection of young women.
The draft law will now go to Angela Merkel’s cabinet for approval before being presented to the Bundestag for a vote.