Miley, 19, announced her and Hemsworth's engagement in June, saying that she looks forward to "a life of happiness" with the Hunger Games star.
Her father Billy Ray has now publicly given his blessing to the impending marriage in an interview with Entertainment Tonight Canada.
"Liam's a great guy... I like Liam a lot," he declared.
Billy Ray added that all he can hope for his daughter Miley is a fulfilling relationship.
"The main thing for me is that both of them are happy... Miley's worked really hard, and I'm enjoying right now seeing her so happy," he said.
"She and I always had a mantra and the mantra was: if you ain't happy, it ain't working. As long as [Miley's] happy right now, life is good!"
Miley recently suggested that she and Hemsworth won't wed any time soon because she is busy completing her fourth studio album.