This paper investigates the methods to improve senior high school students' English writing ability from two dimensions: English writing self correction ability and English writing self correction attitude. The results show that: 1) there are significant differences in error recognition rate and error correction rate among the three different level groups. 2) Low level students also have basic error correction ability. 3) When asked if students are required to make self correction, the middle and high‐level groups think they can try, but the low‐level group firmly opposes it. This paper briefly analyzes the reasons for the use of self correction, and the research conclusion has certain guiding significance for the teaching of second language pragmatic competence.