With the new trend of "Lifestyles of Health and Sustainability, LOHAS," a lifestyle called "slowness" is spread in the current society (Honore, 2005). In this atmosphere, yoga has become a popular exercise nowadays. The population for practicing yoga is getting more and more, so is the market demand for yoga teachers, however, there is no systematic and accredited certification system for yoga teacher's qualification in Taiwan. Therefore, the purpose of this study was to review the legislation in Taiwan and overseas development related to sports certifications including the information of Yoga Alliance which has been established for a long time and is an acknowledged organization for yoga in the United States. This research can be referenced for relevant authorities to set up a unified and systematic accreditation system in Taiwan. The data were analyzed and findings were summarized as follows: first of all, the quality of students was not at the same level as lacking the measurements for enrollment. Secondly, the quality of teachers was different as well. Due to there was no unified certification system for yoga teachers in Taiwan, fitness centers and studios did not provide the same regulation to estimate the qualification of yoga teachers. Thirdly, certified courses were incomplete. At present, there was no qualified and specialized organization responsible for training and accrediting yoga teachers in Taiwan. Fourthly, the disclosure of training and certification information was not enough. Because training courses were offered by only a few institutions, they would reveal limited information for being competitive and protection of intellectual property rights. Fifthly, there was no expiring date of certifications accredited in Taiwan. In other words, yoga teachers with those certifications have a lifetime guaranteed qualification. Finally, there was no standard charge for yoga certification training courses. In order to establish a comprehensive accreditation and certification system, it is recommended that the official authority shall cooperate with non-profit organizations (NGOs) to strengthen the integration of yoga training courses. Yoga will, like other sports have vision and sustainable development.