It’s no doubt that the economic expansion brought many advantages to Mainland China, however, there also some disadvantages. This essay shows both of the pros and cons of economic expansion in Mainland China, for example, the increase of GDP and the environment problems. There will also talk about the effect of economic expansion on industries and give a specific industry as an example. First of all, I will give some background about this topic. The economic expansion is a kind of economic activity, it describe the level of economic activity of the goods and services available in the market place. Economic growth is a measurement of national income and national income can be measured by income, output and expenditure of an economy. If there is a high rate of economic growth, it means that the income, output and expenditure are increasing.