The academic falsification of Zhai Tianlin's thesis is February 8th, 20th19th. The authenticity of Zhai Tianlin's doctorate was questioned because he didn't know what HowNet was when answering questions from netizens on the live broadcast. Later, he left a message on Sina Weibo saying that he was "just joking". Zhai Tianlin Studio said that its paper was uploaded by the school and made public in the first half of 20 19. On February 2019 10, Zhai Tianlin was listed as an "academic misconduct case" by the Academic Integrity and Scientific Exploration Network of Sichuan University. On February 1 1, Beijing Film Academy set up an investigation team and started the investigation according to relevant procedures. On the evening of February 1 1, Guanghua College of Peking University issued a statement to deal with it according to the investigation conclusion of its doctoral degree awarding unit. On February 14, Zhai Tianlin issued an apology letter through his personal Weibo. On February 15, the Ministry of Education responded that "Zhai Tianlin was suspected of academic misconduct", saying that the Ministry of Education attached great importance to this and asked the relevant parties to check it quickly at the first time. On the afternoon of February 16, Peking University released an investigation statement about recruiting Zhai Tianlin as a postdoctoral fellow: it confirmed that Zhai Tianlin had academic misconduct, agreed to Zhai Tianlin's withdrawal from school, and instructed Guanghua School of Management to make an in-depth examination. 201Feb. 9 19, Beijing Film Academy issued a statement on the investigation progress of "Zhai Tianlin's alleged academic misconduct", announcing the revocation of Zhai Tianlin's doctoral degree and the disqualification of Yang Chen's doctoral supervisor.