Student teachers need high quality induction from their mentor teachers. Mentor teachers need support and guidance as well. If mentor teachers have enough professional competence, the mentoring programs could be more effective. It is possible that student teachers enhance their learning and growth through mentoring and induction. However, most mentor teachers do not know how to help student teachers and they haven’t participated in the mentor training. The quality of mentoring is frequently inadequate to produce the kind of impact. This paper explored the design issues about mentor teacher training programs. Findings will be useful as an action guide for teacher education institutions and practicum schools. The design of training programs took into consideration the following three conceptual models: the competence-based model, the PDCA (Plan-Do-Check-Action) cycle model, and the human resource development model. These provided helpful information as to how to design an effective training program for mentor teachers. It also discussed key issues about mentor teacher training programs. Finally, some suggestions for training mentor teachers were offered.