Nassau County police say Elizabeth Marrinan of Garden City was arrested Sunday evening.
Police responded to the couple's house on Pine Street just after 6 p.m.
They say the couple got into an argument that became physical and Marrinan allegedly stabbed her 57-year-old husband in the chest.
He was taken to a hospital where he was listed in critical condition.
Police declined to identify the victim.
Marrinan was charged with attempted murder and possession of a dangerous weapon.
Get Eyewitness News Delivered