Multimodal teaching method complies with the trend of the times and it integrates all kinds of modal symbols in creation of meanings.Therefore,based on the multimodal discourse analysis,with 134 undergraduates enrolled in 2015 in Shandong province as its subjects,the paper uses the empirical methods to make a comparative analysis of English learning achievements between students' multimodal PPT presentation teaching model and teacher-oriented PPT presentation teaching model.The paper also studies students' multi-literacy based on the analysis of generic type,generic structure and modality employment.The results show that the former teaching method can significantly improve students' English learning achievements.Students' language ability,their scope of knowledge and ability of information processing influence their practical application of their multi-literacy.Therefore,teachers should guide students effectively according to their specialties and practical English proficiency.