The Metropolitan Police operation, that so far has cost UK taxpayers £11.75 million, is to receive £150,000 in further funding to keep Operation Grange active.
The Home Office confirmed on Tuesday that it has allocated the money to Scotland Yard to continue its investigation until March, 2019.
Madeleine was last seen while on holiday with her parents in Praia da Luz, in May 2007.
In 2013, Scotland Yard launched its own investigation, Operation Grange, into Madeleine’s disappearance after a Portuguese inquiry had been failed to make headway, according to the Met.
In 2017, Operation Grange staff were closing in on a "significant" line of inquiry, but no further details were made public.
Madeleine's parents, Kate and Gerry McCann, have pledged never to give up the search for their daughter.
The Home Office spokesperson said: "We have confirmed that Special Grant funding of £150,000 will be provided to the Metropolitan Police Service for the six-month period to 31 March 2019."
