Purpose: This study aimed to establish a support model by interprofessionals that responds to the wishes of frail older adults with dysphagia and their families regarding oral intake, for that clarify the current state of interprofessionals support for frail older adults with dysphagia and their families. Method: This study comprises two parts. Study 1 involves the author interviewing 37 interprofessionals. Categories were integrated into core categories based on their similar purposes, and further led into elements. Study 2 involves the created of the original support model using the extracted elements. The appropriateness of the original support model was investigated by conference with experts. Finally, we established a support model. Results: We extracted 15 categories from the interview survey. Categories such as “interprofessionals catch the wishes of the frail older adults for food and their satisfaction with life,” and “nurses work toward interprofessionals to achieve preferred oral intake by patients and their families” were included. We extracted eight elements from the categories, “collecting information on the general condition and eating and swallowing functions of the frail older adults, so that assessing the overall lives of the frail older adults,” “common understanding of oral ingestion and aspiration among frail older adults, their families, and interprofessionals,” and so on. Discussion: Interprofessionals provided support in reaching a common understanding of the desired oral intake for frail older adults and their families. Nurses play a central role in providing support, and it was suggested that the management skills of nurses were important.