The global economy has developed rapidly since 21st century. However, due to the fact that more and more countries chose high-energy consumption economic pattern, the environment has gone worse and worse. As the biggest country in carbon emissions, China has marvellous pressure in reducing carbon emission and achieving low-carbon economy. How the Chinese government achieve sustainable and low-carbon development becomes one of most important studies in our country. The article will introduce environmental regulation, which is the way of solving problem about carbon emission. After that the article will take the relationship between environmental regulation and carbon emission as the empirical research object. Results show that environmental regulation can reduce carbon emission directly.