In view of the discrepancies in teacher training and teaching practice, this paper put forward a context-adaptive teacher training model in a ubiquitous learning (u-learning) environment. The innovative model provides teachers of different subjects with adaptive and personalized learning content in a u-learning environment, implements intra- and inter-group collaboration to facilitate knowledge construction and in-depth study, and promotes reflection with the help of the supervising teacher's review and summarization. To test the effect, the model was applied to a general teacher training. Participants were then given questionnaires and interviews were conducted to assess the effectiveness of the model and attitude. Results showed that the model promoted teachers' learning effectively, achieved the combination of teacher training and teaching practice. Moreover, teachers held positive attitude toward the model.