What is the most common dish in china?

Snukii V, seeing as you're Asian, you should know kimchi is Korean. This user is asking for China.

Dimsum is popular. It's kinda like a brunch. It consists of many small dishes/appetizers, such as shaomai (sushi SHAPED dumplings, it's very good), jiao zhi (dumplings- boiled or fried), and tofu wrapped around pork and bamboo sticks.

Beijing Peking Duck- sliced duck inside white bread with delicious brown sauce, green onions, and cucumbers.

Sweet and Sour Chicken, General Tso's Chicken, Pork Ribs with Black Pepper Sauce.

Stir fried rice with vegetables such as peas, carrots, and green onions. Can be served with eggs and meat.

Tofu noodles with wonton and soup, fried noodles, birds nest noodles (hard noodles served with a warm sauce that makes it soft- my favorite)

Steamed/Fried vegetables. Usually served with garlic.

Fish! Steamed fish served with brown sauce/translucent, oily, brown sauce.

dim sum (an assortment of steamed or fried dumplings and buns with various fillings)
taohu (soybean curd, the chinese version tofu)
noodle in pork / chicken broth and meatballs or meat slices.
cap chay (vegetable stir fry)
roasted pecking duck

This site may help you out. I think they have an address where you can get questions answered on China and Silverware.Good Luck!

Pork buns. It seems regardless of the region, every type of Chinese cuisine has its own version of pork buns.

Rice would be the most common followed by noodles.

Rice and Vegetables

Stir fry veggie, tofu, fish and rice. Not too much red meat.

kimchi it's a pickled spicy veggie..it's usually cabbage but they also use seaweed and sometimes squid..it's really good