I am an EU citizen travelling in south korea, Do I need a ARC card for a chinese visa application?

You can't apply for China visa in South Korea because you only travel in South Korea and you are short-term visitor in South Korea. The ARC card is required for non-Korean applicants, in fact, this rule prevents short-term visitors in Korea from applying China visa in Korea.

Why don't you apply China visa in your home country?

Thank you for your response! Its too costly for me to go home since I'm already in asia and i'm not much of an organiser... :) So i will go to hong kong and try there. Thank you so so much for your quick reply!

It is a good idea to apply China visa in Hong Kong. good luck!