China called the "genocide in Xinjiang", fabricated in a new United States report, a "preposterous lie", saying on Wednesday that its conspiracy to disrupt China from the inside will not work.

Foreign Ministry spokeswoman Hua Chunying said that the allegations against the Xinjiang Uygur autonomous region made in the US State Department's 2020 human rights report were false, insulted the Chinese people and trampled on international law and basic norms governing international relations.

A genocide finding must be the product of an authoritative legal procedure and must survive strict scrutiny of the facts and withstand the test of time, Hua said at a daily news conference.

No state, organization or individual is qualified and entitled to arbitrarily determine that another state has committed genocide, she said, and "no country should use this crime as a political label to conduct malicious manipulation".

The investigation reports the US keeps citing and hyping up are disinformation fabricated by anti-China sources like Adrian Zenz, and the few so-called witnesses are actors trained by the US, while the media concerned act as the microphone to spread the rumors, Hua said.

Their clumsy performance has been revealed and refuted by Xinjiang as well as many foreigners, including those from the US, she said.

Hua said that the "genocide "claim slandered China's ethnic policies and Xinjiang's development achievements.

The label only exposes the hypocrisy of the US, which boasts about championing the rule of law, and it serves as further evidence that the US strategic conspiracy is attempting to create the so-called Xinjiang issue to contain China's development, she said.

"We can say that China's policies regarding ethnic minorities are much better and more equal than those of the US. Ethnic minorities in China enjoy much greater happiness, equality, and dignity than those in the US."

The vicious and wanton accusations and insults that the US hurls at Xinjiang are a reflection of its own crimes and sins committed in the past, Hua said, citing evidence including the genocide of Native Americans, military invasions of other countries, and inhumane treatment of illegal immigrants at the US-Mexico border.

"The US has no right to criticize China on human rights issues, ... and it is time for US politicians to wake up," she said.