No, China is not part of NATO. But China is part of the Shanghai Cooperation but not nato, because: a. Nato was created in 1949, that Maybe the same year when the communist China won against the Republican of China. b. China is a communist government, not only that it was an ally of the Soviet Union. read more
And heres the interesting part The UK might actually part with NATO and join the Chinese due to the fact that China simply invested took much money into the UK, way more than the US did, so UK might shift their loyalty. read more