The Chinese government launched a shot across Donald Trump’s bow, warning the president-elect its “national sovereignty and territorial integrity” are non-negotiable.

The remarks directed at Trump came this time from China’s ambassador to the US in a meeting with business leaders in Washington, DC.

“The political foundation of China-US relations should not be undermined. It should be preserved,” Ambassador Cui Tiankai said.

“And basic norms of international relations should be observed, not ignored, certainly not be seen as something you can trade off,” the Chinese diplomat said.

“And indeed, national sovereignty and territorial integrity are not bargaining chips. Absolutely not. I hope everybody would understand that,” he added.

The remarks are continued fallout over Trump’s comments on the “one China” policy and his decision to take a congratulatory phone call Dec. 2 from the democratically elected leader of Taiwan.

“I fully understand the ‘one China’ policy, but I don’t know why we have to be bound by a ‘one China’ policy unless we make a deal with China having to do with other things, including trade,” Trump said in an interview last weekend on “Fox News Sunday.”

The amped-up rhetoric from the Chinese comes just days after a propaganda paper run by the Chinese Communist Party said Trump is as “ignorant as a child.”

“China needs to launch a resolute struggle with him,” an editorial in the Communist Party organ, the Global Times, said this week, before issuing threats and calling the American president-elect names.

“Only after he’s hit some obstacles and truly understands that China and the rest of the world are not to be bullied will he gain some perception,” the paper said.

“Many people might be surprised at how the new US leader is truly a ‘businessman’ through-and-through,” it added.

With Post wires