A very interesting question. I don't believe in China, such concept exist. It's more related to an event rather than a single person.

If we think of the Yan'An rectification campaign or the Cultural Revolution, many people died, including top leaders, as a result of tortures or killing. They weren't properly assassinated, but the circumstances of their death were often politically motivated.

Lin Biao's death has also always given rise to controversy. I don't know if you can include it in your assassination attempts.

How far back you wanna go? People always used to try to off emperors.

Anti-corruption official got stabbed 10 times and it was ruled a suicide by the same people he was investigating. If that isn't an assassination then I don't know what is.

beau: that's the govt killing a govt official which is very common i was refering to instances where a person (civilian) kills a govt official

I've heard of a few local officials being targeted in car bomb attacks by people angry over housing demolition. Other than that, due to the strict control of weapons in the country and the group over individual mentality, there aren't many assassination attempts by average people.