With the development of internet, online education service are booming in China. Teachers can provide live course through internet and the convenience and low cost of online tutoring also attract an increasing number of students and parents. Because of the unique exam-oriented education model in China, there has been a huge market. That being said, high-quality teachers and educational resources are mostly concentrated in megacities and online education enables students across the country, especially students in disadvantaged areas to listen to high-quality courses. Meanwhile, the online education also provides the masses who have stepped into the society with the opportunity to improve academic background.