I think that it depends on what type of Chinese food you order. Many dishes such as fried rice, egg rolls, and anything with fried meats are going to be loaded with fat and calories. If you stick to dishes with fresh vegetables, seafood and chicken, they are much healthier.
I dont think you can make a blanket statement whether Chinese food is healthy or not. Like most cuisines, there are items that are unhealthy, and there are other items that are quite healthy. For example, most stir frys have a healthy helping of veggies, a small quantity of meat with can be chicken white meat, and you can do this with brown rice. Thats about as healthy as you can get!