Nowadays many middle school students prefer studying abroad because it has an important role in our daily life. Generally speaking, its advantages can be seen as follows. First it gives us a good surroundings for language study .Second we can learn foreign advanced science and technology. Besides we can also spread our national culture to foreign countries. But every coin has two sides. The negative aspects are also apparent. One of the important disadvantages is that middle school students are too young to care of themselves and that they are lack of life experience. To make matters worse,the cost for life and study is too high.