The 26-year-old actor, who plays River Boy Heath Braxton on the show, was arrested and charged with common assault last month following an alleged domestic dispute with fiancée Marni Little.
Police officers reportedly found Little "in a distressed state" when they arrived at the couple's Sydney apartment on December 6.
Ewing later pleaded not guilty to assault and Little has supported him in recent weeks. Her lawyer told a court on December 20: "There was never any assault, there was never any touching."
The Herald Sun reports that Little's official statement is the reason that the matter has now been dropped.
A police spokesperson commented: "NSW Police can confirm that common assault charges against a 26-year-old will be dropped as it is no longer a police investigation."
Ewing joined the cast of Home and Away last year as the River Boys descended on Summer Bay.
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