ABSTRACT This empirical study aims at investigating how junior and senior high school English teachers conceptualize and instruct culture in their teaching of English. A questionnaire covering various issues about culture instruction and English teaching was developed by this researcher and distributed to 158 junior high school English teachers and 125 senior high school English teachers in Taipei City via mail. The returned questionnaires numbered 154, including 88 from junior high schools and 66 from senior high schools. The results revealed that culture was generally considered significant in foreign language teaching and was instructed by most of the subjects in their teaching of English. However, inadequacy was unveiled concerning the cultural components included in the teaching and the ways these teachers conducted their culture instruction. Besides, some problems—including the deficiency of teachers’ cultural knowledge, the inadequacy of cultural components in the English textbooks and teacher’s manuals, the difficulty in obtaining cultural materials and resources, and the constraint of instructional time—were found to hinder the teaching of culture. Based on these findings, some suggestions were made not only to English teachers but also to institutions of teacher education, secondary school authorities, textbook writers and publishers with the aim of achieving a more effective and efficient integration of culture and English teaching.