A Long Island man was busted for drag-racing early Sunday — with his 7-month-old daughter and 3-year-old son in the back seat, cops said.

The children were unharmed, even though doofus dad Darnell Anderson, 25, was racing a drunken pal in Ronkokoma at 2 a.m. at speeds of up to 118 mph — and the little boy was unrestrained, officials said.

The infant daughter was in a child-safety seat.

The Central Islip man was charged with multiple raps, including endangering the welfare of a child and driving without a license.