English is a key subject in high school that troubles many students, especially in the aspect of vocabulary learning. Only by laying a good vocabulary foundation can students better complete the learning tasks such as reading, writing, listening, and speaking training. This paper aims to explain the importance of improving the efficiency of English vocabulary learning and discuss the effective methods of English vocabulary learning in high school, in order to help more students find their own learning methods, improve vocabulary memory and application skills, and lay a solid foundation for follow-up learning, examination, and even work.