This article intended to discuss prominent issues in teaching Intercultural Communication (ICC) to English as a foreign language (EFL)- students through the pilot English textbook-English 10 in Vietnamese high school level. The concepts of culture, language and culture, teaching and evaluation ICC and using Information Communication Technology (ICT) tools in teaching and learning ICC were defined, respectively. Next, the characteristics and components of culture would be presented as well. The relationship between language and culture would also be pointed out. Moreover, factors such as teaching, curricula, and textbooks that had an impact on the success and failure of teaching culture to EFL high school students would be examined. Besides, various uses on ICT in ICC teaching and learning would be explored. The result of data analysis from instruments: questionnaires and interviews would be presented and addressed. Additionally, the evaluation about cultural perception and ways to use ICT tools for combination into the lessons would too be described. Furthermore, the advantages and disadvantages of using ICT tools for teaching ICC in the high school language classroom would be mentioned after data analysis. Finally, some discussions and conclusion would be made.