In 2024, the number of Chinese students taking the Cambridge English Main Suite Examinations (MSE) reached 470,000 person-times. However, the combined excellent rate and outstanding rate for KET is 33.6%, for PET is 20.6% and for FCE is 16.2%. Most of the examinees have relatively low scores in reading and listening, and those who pass the exams often need to rely on their writing and speaking to boost their overall scores. Behind these figures, it indicates the insufficient amount of English reading among Chinese teenagers. For those learners who achieve full marks in reading and listening, it reflects their extensive English reading. This presentation will show the positive effects of extensive reading on preparing for the MSE, and report on case analyses.