the top trending topics.
President Xi Jinping, while attending an Apec summit in Manila, reiterated that terrorism was the "common enemy of humanity", and added: "The Chinese government is opposed to all forms of terrorism, and will firmly crack down on any violent and terrorist activities."
It's not clear what actions China might take at this stage.
On social media, the first Chinese citizen's death at the hands of IS is one of the top trending topics.
Netizens express their shock and horror, calling IS "sickening". But opinion is divided as to how China should react to the latest IS atrocity. Some call for a Russia-style intervention to attack IS, saying "condemnation is empty, you need action".
Others urge caution.
Another message said: "Europe can't wait for China to join in the tangled warfare, but we didn't create IS, and if we get into the fight, that would be big trouble for us."
A signed article circulating on the Wechat messenger service touches on the reaction to the Paris attacks and to the Chinese hostage killing.
"Some [netizens] say that terrorists are the product of inequality in Europe; it's resistance to the oppression of Western ideology in the third world," Hu Han writes.
"Now that the fire is burning close to home, do you still think it's other people's business?
"Terrorists are not fighting against Western civilisation; they are not fighting for social justice; they are killing civilians, and this is totally against humanity," he concludes.