Wang became a cab driver in the hope of crossing paths with his daughter as a passenger.
The couple, who have another daughter and son, reportedly spent years searching for her in the city and surrounding areas.
A daughter was reunited with her family Tuesday after 24 years of going missing in Chengdu, China.
In 2017, the family had a breakthrough in their search when a police sketch artist read about Wang and made a decision to produce an image of what Qifeng would look like now. They left no stones unturned to find their daughter, but were not successful. Mr. Wang actually stepped up his search by becoming a taxi driver for a popular ride sharing company in China, Didi Chuxing. Not having a likeness of how she looked later in life, he included a photo of another daughter who looked similar. He put up a large sign asking for information about the little girl shown in the picture on his rear window and handed out cards with information about Qifeng to every passenger he drove around.
"My biggest wish right now is that someday my daughter will sit down in my auto, and shout "Dad". His plan gained media attention in China, and despite Chinese police identifying a number of women who fit Qifeng's description, DNA tests were negative.
A breakthrough came in late 2017 when a police sketch artist wanted to help Wang and drew a portrait of what Qifeng might look like as an adult, reported the BBC. The picture was circulated online. According to local media, Kang had lived with her adopted parents only 12 miles away from Chengdu. A DNA test has since confirmed Kang Ying is Mr Wang's lost daughter.
She quickly contacted Wang and realized she shared some unusual traits with Qifeng, like a small scar on her forehead and a tendency to get nauseous when she cried. This time, the result was positive - Mr Wang had finally found his long-lost child. She tearfully told reporters, "The whole world said that I don't have a mother, but I do have one!"
"You don't need to worry anymore".
The following day, they were reunited after 24 years. "My daughter has been found - thank you everyone", said the emotional father.
A woman named Kang Ying, who was in Jilin, thousands of kilometres away from Chengdu, saw the picture and was shocked by the resemblance.
At least four news outlets, including China Central Television, carried livestreams online showing Kang's journey "home" from Chengdu Shuangliu International Airport and the parents anxiously waiting in their neighborhood.
Wang told the Beijing Youth Daily newspapers: "I can't tell you how much hope, disappointment and despair we have gone through these past 24 years. Now we can finally meet again", Wang said.