Yes, broccoli has tons of vitamin c, and one serving of broccoli contains more vitamin c than does an equal serving of an orange. You can check out this kind of cool fact on calorie counting sites, which usually have all the nutrients listed for most foods.
Broccoli is an excellent source of vitamin C and also vitamins K and A. It is also a good source of folate, fiber, potassium, and phosphorus. The nutrients in broccoli can also help prevent cancer.