The objectives of this research are: (1) to describethe implementation of World Style debate to teach speaking; and (2) to explain how the World Style debate improve students’ speaking competence in Senior High School. The research is a result of library research entitled “How to Teach Speaking Using World Style Debate”. The data of the research obtained frombooks and scientific journals which are explained World Style debate or British Parliamentary debate. The research data were analyzed by using qualitative techniques through critical analysis.

The research findings prove that the World Style debate is useful to teachspeaking, the benefit of World Style debate is viewed from several dimensions. First, World Style debate can improve students’ speaking ability, Second, World Style debate can improve the students’ involvement in learning process, Third, World Style debate also promote students’ critical thinking skill, Fourth, World Style debate can increase the motivation and excitement, Fifth, World Style debate can help the students to improve subject knowledge and easier to understand the material, Sixth, World Style debate can develop the students’ oral communication skill.

World Style debate is a collaborative teaching strategy that benefits for students achievement and for students’ interest. As the suggestion, to develop the students’ speaking ability teacher should apply Wolds Style debate as an interesting activity to teach speaking skill.

Key Words: World Style debate, speaking, library reseacrh