Small-scale family daycare unit is a unique long-term care model in Taiwan for years. However, this care model is still not popular and well-known even though there are great care needs. The purpose of the study was to investigate factors affecting the development of small-scale family daycare units in Taiwan. The study was done by focus group interviews targeted toward certificated home-care health workers in the norther Taiwan region. The study found that qualified home-care workers appreciated the family daycare unit model, but their willingness of doing the business was greatly affected due to the barriers of its complicated and prolonged application process to establish the unit, difficulty understanding the law, the opposition from neighbors, the level of risks, and the unstable case resources. All of these factors contribute to reduce their motivations of investment in family daycare unit. According to the results, the external factors affecting the motivations of home-care workers are greater than personal ones. Therefore, this study concludes by making relevant suggestions for promoting the development of small-scale family daycare unit in Taiwan.