In this study, how does the level of self-confidence affect the diffusion of high-tech in language teaching were explored. Simonson & Thompson (1997) noted that for teachers to successfully adopt high-tech into their teaching, they need to have a certain level of self-confidence. The level of self-confidence is due to the belief that using high-tech in classroom is more efficient and effective than traditional teaching techniques. Based on appropriate training of hardware and software equipments, and exchanging knowledge with other colleges and technology experts, teachers will increase their self-confidence in their own capability to perform high-tech in teaching. For teaching to holding positive attitude of ”just do it” will not only assist them to access updated information but will also help them in instruction.