CCTV footage captures the owner, who takes a white and black Staffordshire bull terrier from a car and leads it to the other side of the road.
He then runs back to the car while the faithful dog follows him, only for the owner and driver to drive off - leaving the dog desperately chasing the vehicle.
The footage was recorded at around 5pm on December 17 at the corner of Timor Grove and Pacific Road, Stoke-on-Trent, Staffs.
A man is seen leaving the passenger side of the car carrying a dog bed, and leading the dog.
The footage shows him cross the road, leaving the bed on the pavement and unclipping the dog’s lead, before running back to the car and driving away.
The distressed dog jumps up at the window and chases the car as it drives away.
The dog was found sitting in the bed by a passer-by during the following hour.
They took him to a local vets who called the RSPCA - and nicknamed the dog “Snoop”.
RSPCA inspector Natalie Perehovsky is now investigating and is appealing to the public for any information about the men responsible for dumping the dog.
Inspector Perehovsky said: “The footage has to be seen to be believed, it’s just awful.
“To see the poor dog in such obvious distress jumping up at the car as it drives away it just heartbreaking.
”I can’t understand how someone could do this.
“The vets scanned his microchip and we have traced two previous owners in the Birmingham area, but do not believe either are the current owners, and therefore not those responsible for abandoning the dog.
“One man can be seen clearly in the footage dumping the dog, and there is a second person in the driver seat of the car. I am very keen to hear from anyone who recognises the vehicle, the man or the dog.
“The veterinary staff have nicknamed the dog Snoop, and he is in good condition, thought to be two years old.
“He is a white Staffie with black marking, and is such a friendly, lovely boy.
“He’s currently being cared for at a private boarding kennels where he will get all the care he needs whilst I investigate further.
“Anyone who recognises the vehicle, the dog or the men in the footage can contact me in complete confidence, by leaving me a message on our inspector’s appeal line number on 0300 123 8018.
“It’s beggars belief that someone could abandon a dog like this at Christmas, but we are so thankful to the kind people who found Snoop sitting sadly in his bed, for taking him to the safety of a vets straight away.”