Using the existing bikeways of Taoyuan county as the scope of study. The research conform domestic and international literatures to be standard for the bikeway system. This paper use DANP (DEMATEL based on ANP) methods includes DEMATEL (Decision Making Trial and Evaluation Laboratory), and ANP (Analytic Network Process) to establish the commuting bikeway system decision model. The article also use VIKOR (VlseKriterijumska Optimizacija I Kompromisno Resenje) to selection performance in three route of the existing bikeways. Five items are chosen, including safety, continuity, guide, convenience, and comfortable issues. Seventeen criteria were under those as well. By collecting the professional viewpoints from the industry, government and academic units and the Questionnaire of users, the weights with interrelationship among criteria are generated and evaluated performance of the bikeway. Thus, this research expects to find the influential factor of a bikeway system, and then improve the bikeway system progressively, and provide a good environment and service quality to the bike-riders in an urban area.