The main purpose of this study is to understand the career development process of different generations of Taiwanese cooks, and analyze the effect of space-time background on career development of cooks. This study conducted interviews with nine cooks of different generations and used participant observation to observe. This study found that cooks of traditional generation and baby boomer generation mainly initiated their cook career as apprentices in food and beverage industry due to the influences of time and family factors. Cooks of generation X mainly majored in food and beverage related departments due to self-interest, and then initiated cook career in relevant workplaces. As cooks of traditional generation and baby boomer generation transferred their career to serve as teachers and to engage in cooking teaching, generation X's learning time in their cook career is shortened. There were any differences in the key factors affecting the professional career development of cooks of different generations at each stage, e.g. perseverance to learn, language barrier and obtainment of license. Moreover, in Taiwan, under the space-time background of the holding of culinary exhibitions, implementation of system of cook's license system, information conveyance of media, rise of hospitality education, upsurge of information technology, introduction of exotic cuisine, or participation in food contests, the professional development of cook career has been changed from the original simple and implicit one to diversified and explicit one. Cooks have stepped onto stages to exhibit their talents and perform on screen what they have cultivated behind the scenes, transferring cook into a popular career. It is advised that the professional development of cook career should be integrated with experiences of diversified learning and should attach importance to lifelong learning and obtainment of diversified licenses to aim at cultivating Taiwanese cooks with international communication skills.