The 20-year-old singer-actress, who is engaged to actor Liam Hemsworth, posted several images of her with the canine friend on micro-blogging site Twitter.
In a series of tweets, Cyrus wrote, "Meet Bean @SpotRescueDogs. Bean is a little girl. She is a chihuahua mix of some type, she brought so much sunshine (sic)."
"I love my little bean so much. My little burrito. I spot a baby bean Napping with her Aunty @RealDenikaB #puppyluv (sic)," she further tweeted.
Cyrus's decision to get a puppy comes just a few weeks after her dog Lila was killed by one of her other pets.
In December, the singer was left heartbroken after the diminutive Yorkshire terrier was fatally attacked by her English bulldog Ziggy.
Cyrus even dedicated her performance at the 'VH1 Divas' concert to her departed mutt.
The pop star also made the painful decision to give up Ziggy to an owner with no other pets or children in case the attack wasn't a one-off.
