This study is designed to help to understand the Korean EFL teachers` experiences of computer-mediated communication(CMC) focused on the topics of collaborative computer-mediated interaction. With respect to one of the major conditions for collaborative learning, we should recognize that it occurs when the communicators actively and willingly cooperate based on strong motivation. Moreover, we should understand how the both sides help each other to achieve collaborative communication in the target language. Therefore, this study explores what the participants` motivation for collaborative experiences is like, how native/nonnative speakers perceive these motivation, what the main factors interfering with nonnative speakers` collaborative learning are, and how the both sides endeavor to enhance more desirable environment for collaborative interaction.