This paper explores a pedagocial approach to teaching oral English---Conversation Analysis. First, features of spoken language is described in comparison to written language. Second, Conversation Analysis theory is elaborated in terms of adjacency pairs, turn-taking, repairs, sequences, openings and closings, and feedback. Third, under the theoretical framework of Conversation Analysis, a syllabus for improving learners' oral English skills is designed in consideration to learner profile, needs analysis and communicative events and materials employed in teaching. And a teaching model is explored with reference to Riggenbach (1999). Finally, two types of assessment are discussed to provide insights for teachers on the effect of teaching and learning. All the issues discussed above will provide teachers and scholars with a clear instruction on how to apply conversation analysis to teaching oral English skills and the discussion will lead to the feasibility of applying a conversation analysis approach to teaching learners' oral English skills.