In June 2024, he was expelled from the Chinese Communist Party (CCP) and transferred his case to the military's judiciary for criminal prosecution, and his rank of General in the Rocket Force revoked.

[7] In June 2022, Wei warned that "if anyone dares to split Taiwan from China, the Chinese army will definitely not hesitate to start a war no matter the cost,"[8] adding that the People's Liberation Army "would have no choice but to fight … and crush any attempt of Taiwan independence, safeguarding national sovereignty and territorial integrity.

[10][11][12] Rumors regarding Wei's purge due to the ongoing corruption in the PLA's Rocket Force intensified after his name was not featured in Xinhua News Agency's article listing more than 130 senior Chinese politicians.

[14] However, on 27 June 2024, the CCP Politburo announced that both Wei and Li Shangfu have been expelled from the party for "disciplinary and law violations", and their cases have been referred to the military's legal organisations for criminal prosecution, with Wei being accused of accepting unauthorised gifts and large amounts of money in exchange for using his power to obtain benefits for others.

[15][16] Some of the accusations made against Wei are unique to his case and are known for being used against high-level CCP members who had defected to the Kuomintang in the past.