Iron craft is a society cultural heritage that has to be preserved. There are many factors working on the sustainability of domestic iron craft industry. This research aims to investigate those factors. The primary data were collected through the field observation, deep interviews, surveys, and documentation. The secondary data were obtained from literature reviews. Those data were deeply analized by qualitative method. The result of this research reveals some factors obstracting the rise of iron craft productivity which are human resourses, management, and finishing. The decreasing number of labors working in this industry and the absence of potential future Iron craftmen as well as the inadequate tecnology application to do the finishing process. Good management practise is required to develop the iron craft business. The values believed by the blacksmiths are family values, community values, and cultural values. The trade off of technology application replacing the labors potentially decrease the current values. On the other hand, technology is requaired to increase the productivity.