Background: This study was conducted to identify the importance and performance of welfare technology utilization as perceived by users’ guardians of long-term care facilities and to suggest welfare technologies that must be introduced in long-term care facilities based on the results. Methods: A survey was conducted on 386 users’ guardians of long-term care facilities. Through the survey, the importance and performance level of welfare technology perceived by users’ guardians of long-term care facilities were identified, and the differences in importance and performance level were evaluated using the importance-performance analysis. Results: The first quadrant, which is the area of maintaining the good work, included walking aids, fall prevention sensor, sensor technology, transfer aids, toilet aids, and Global Positioning System. The second quadrant, which is the area of concentrated efforts, included medical telemedicine, social alarm, aids for sensory loss, patient transfer, and remote control. The third quadrant, which had both low importance and low performance, included information and communication technology-based psychotherapy, physical training, robotics, automatic pill dispensers, rehabilitation, communication robot, technical pet, and online community. Finally, the fourth quadrant, the area of possible overkill, included telephone or network and brain training. Conclusion: This study provides essential evidence data on welfare technologies applicable to long-term care facilities. Based on the results, the types of welfare technology that must be introduced first are suggested.