With the development of economic and political integration, international exchanges are becoming more and more frequent. English is no longer just a course, but a skill and a means of communication. Therefore, proficiency in the use of foreign languages is particularly important. With the passage of time, the teaching methods are becoming more and more diversified. The traditional teaching mode can no longer meet the needs of teachers, so people should take diversified teaching methods to enrich classroom teaching. In the classroom teaching, teachers should reasonably apply the principle of English semantic analysis and the structured teaching system to achieve the best teaching effect. Using semantic analysis technology, this paper analyzed English vocabulary, phrase, and the relationship between phrases, in order to achieve certain teaching effect. The results showed that in the general English teaching, the conventional vocabulary learning method is based on English, while the experimental group is based on the semantic analysis of English teaching and content teaching, and the control class pre-test score is not different. In the experimental group, the pre-test score was 68.7, and the post-test score was 81.9, a difference of 13.2. It may be seen that the utilization of semantic examination and organized showing in English educating can enormously work on the nature of English learning.