The purpose of this study was to investigate the characteristics and caregiving behavior in families who awarded on filial piety. Using the qualitative method 137 families and social supports to them were analyzed,. The major findings can be summarized as follows (1) Most of caregivers were daughter-in -law over 40 years in 3-generation or 2-generation family. Elderly can be characterized as oldest-old dependent long-term care for more than 10 years. (2) These families showed very high family solidarity with strong collectivity. (3) Their economic emotional and service cares were family-centered with helps from their extended family. These families were supported emotional helps rather than instrumental helps from social network. It was concluded that to help family elder care social support program for the frail elder caregiving families should be complemented in their children support program family life enrichment program for the inter-generational relationship medical care program other social network program and religion program etc. And more concrete and qualified study for the adaptation of filial piety families should be followed.