BEIJING — Two Chinese lawyers who represented a follower of the banned Falun Gong spiritual movement could have their licenses permanently revoked in an administrative hearing on Thursday. The action against the lawyers is the latest move in an increasingly harsh government crackdown on lawyers who take on human rights cases.

The lawyers, Tang Jitian and Liu Wei, said in a written statement that they were accused by the Beijing Municipal Bureau of Justice of having “disrupted the order of the court and interfered with the regular litigation process.” The charge against the lawyers is based on accusations from the Luzhou Municipal Intermediate People’s Court of Sichuan Province, where the lawyers defended Yang Ming, the Falun Gong practitioner, nearly a year ago.

Lawyers in China are usually barred from practicing for life only if they are convicted of a crime. If Mr. Tang and Ms. Liu have their licenses permanently revoked, then this would be a rare occasion, perhaps the first of its kind, when a disruption-of-court charge has led to such harsh punishment, said Eva Pils, a law professor at the Chinese University of Hong Kong.

The two lawyers said in their written statement that the justice bureau’s charge “is obviously factually unsound and lacks legal basis.” The lawyers said it was in fact the judge in the court in Sichuan who was a disruptive element during the trial on April 27, 2009. The judge, Li Xudong, interrupted statements made by the defense lawyers or by Mr. Yang, the lawyers said, “so that the defense was extremely difficult to carry out.” The judge also allowed people to film the lawyers in the courtroom, even though this is usually prohibited.