As for the Huang Yanqiu incident, I think this incident can't even be classified as a case of encountering aliens (although the China UFO Research Association insists that it's a case of alien contact). In 1977, after attending a meeting in the commune, Huang Yanqiu went back to his room to sleep. As a result, when he woke up overnight, he found himself in the middle of a square in Shanghai. He was very scared because he didn't know the city at all. At this time, two people in military uniforms came over and helped him get a train ticket back to his village. However, a few months later, one night when he was sleeping at home and woke up, he found himself in Shanghai again. There were two people again. They gave Huang Yanqiu directions to find a person named Lü Qingtang in the Shanghai Military Region (this Lü Qingtang was a relative of Huang Yanqiu). But Huang Yanqiu didn't know how to find the military region at all. So the two people directly took Huang Yanqiu to the military region. The sentries at the gate seemed to be unable to see them and didn't ask any questions at all. When Huang Yanqiu found Lü Qingtang, Lü Qingtang was quite shocked because he didn't expect Huang Yanqiu to come directly. He asked Huang Yanqiu how he got here. Huang Yanqiu said that two people brought him in. But Lü Qingtang searched all over the military region and couldn't find these two people. The sentries also said that they didn't see anyone coming in at all. Then Lü Qingtang sent Huang Yanqiu back to Shanghai. The secretary of Huang Yanqiu's village also said that the Shanghai Reception Station sent them a telegram asking them to pick up Huang Yanqiu.
However, the incident still hadn't reached its climax. A few months later, Huang Yanqiu fainted after finishing farm work. This time, he found himself in a hotel room in Lanzhou, and the two people who had helped him before were standing beside him. These two people claimed that they were responsible for all of Huang Yanqiu's disappearances this time and the previous two times. Huang Yanqiu asked them why they did this, but they didn't answer. Then these two people took Huang Yanqiu on trips around Lanzhou. What surprised me the most was that Huang Yanqiu said that these two people carried him while flying, and the people below seemed to be unable to see their existence. During Huang Yanqiu's third disappearance, he visited quite a number of cities. It was those two people who carried him in the air. He said that he couldn't feel the air flowing when flying. He felt that the flying speed wasn't fast and that they didn't fly high. He could even see the cars running on the road below... Huang Yanqiu said the same thing when he was under hypnosis. But during the hypnosis process, Huang Yanqiu said that those two people told him not to disclose their affairs, and then Huang Yanqiu suddenly broke free from the hypnotic state.
This incident is very famous in China. However, some people found that there were contradictions between Huang Yanqiu's testimony and that of Lü Qingtang in the military region. And a lot of the evidence provided by Huang Yanqiu came from the hands of a person named Yi Jianmin in the UFO Research Association. In 2021, some news media reported that Huang Yanqiu admitted in an interview that all of this was fabricated by him and the UFO Research Association for the sake of making money. Huang Yanqiu claimed that in fact, back then, he took advantage of others' inattention and boarded a train to Shanghai in order to avoid collective labor and his marriage. (In those days, rural people had to get certificates from the village leaders and organizations before they could go out, and it was quite inconvenient to travel.)