The charity also apologised for its decision which affected 200 families nationwide.
The grants – of between €500 and €1,000 – helped families pay for accommodation in Dublin whilst their children were being treated.
Around €1.8M was given out last year.
“We deeply regret and apologise for the upset which our decision has caused,” said the charity in a statement.
“We hope that this announcement that we are restoring financial support for the more than 200 children and families affected by cancer every year will ease that hurt,” the statement said.
The organisation revealed that it will need a further €200,000 to maintain the scheme but will work to find the savings necessary for the maintenance of the service.
“This fund for children will now be maintained and the financial support for families of children with cancer will now continue,” the statement said.
The move will be welcomed by families here who face long journeys to Dublin and many overnight stays.