As the telecommunication technology and internet have prevailed in the world, the training systems for companies, distance-education system and e-learning system, change dramatically in order to overcome the environmental uncertainty and strengthen the core competency. There are two kinds of training systems: Web based training and postal service based training. In this paper, the service quality factors for postal service based training system are obtained by reviewing literature and survey. Then, the effect of service quality factors on educational performance is investigated by developing and analyzing 16 research questionnaires. The significance of educational effect is tested according to the characteristics of learners and training system, the level of learners' positions and educational curriculum.