A heartwarming moment captured on camera shows a retired police dog tearing up after a surprise reunion with her former handler.

Wangwang, an eight-year-old German shepherd, worked as a sniffer dog at security checkpoints in Xichuan county in Henan province, central China, the Daily Star reported.

Douyin/BWBD

The eight-year-old German Shepherd was adopted after she retired in June 2019. The move meant that Wangwang and her handler were separated after years of working together.

Last month, the police handler decided to give a surprise visit to his friend. In the clip, the police officer can be seen outside Wangwang’s home, calling for her.

As she realises who’s waiting for her, a very excitable Wangwang rushes out of the front door to greet her old friend, running up to him before immediately lying on the floor for cuddles.

Douyin/BWBD

While rubbing up against the police officer’s legs Wangwang appears to let out a little cry. The clip was shared on Xichuan Police’s Douyin account – the Chinese version of TikTok – and the viewers of the video had their hearts melted at the adorable dog’s emotional reunion.

When the patrol unit heads back to their police vehicle, the loyal dog refuses to let them go and sits right by the handler. Wangwang rubs on his legs and appears to tear up while soaking in the moment.

The post read: “Wangwang’s hair is turning white but she is well fed, she is getting fat.

“It is always hard to bid farewell to your buddy.”

Douyin/BWBD

Viewers had their hearts melted at the adorable pooch’s emotional reunion. One wrote: “The dog is welling up. Dogs are really loyal companions, please treat her well!”

“You can tell how much Wangwang misses her handler,” a second commented. “You can understand when the dog greets you belly up.”

What a touching moment and tells you everything about the loyalty and goodness of the dogs.