Research on College English Writing Teaching under the Background of Big Data: Taking Leshan Normal University as an Example

In recent years, online education has been in the ascendant in China’s education market. Among many competitors in this market, the Pigai system, an intelligent online English essay marking system based on big data analysis, is standing out from the crowd. More and more universities, colleges, even middle schools are taking advantage of it. This paper mainly introduces the reform of writing teaching model by utilizing this system in Leshan Normal University. The experiment of the teaching reform has shown that Pigai can shorten the working hours for teachers, develop students’ habit of autonomous study and improve their writing motivation and good language expression ability.