Purpose: The purpose of this study was to categorize the relationships established between visiting nurses and home helpers for care supply and to examine the visiting nurses' awareness and attitude promoting their collaboration. Methods: The subjects were visiting nurses and home helpers who provide care to the same frail elderly. The data were collected by a semi-structured interview and analyzed. Results and Discussion: The relationships between visiting nurses and home helpers were categorized into 4 types -Collaboration, Adaptation, Discord, and Dissociation- in combination with the elements of 8 behavioral patterns; Information sharing, Unification of methods, Role sharing, Techniques to cooperate, Awareness of the relationships, Capability to understand the outcomes, Care contents, and Skills to use measures. It was suggested that visiting nurses should have the awareness of sharing tasks, mutual promotion attitude, learning attitude, responsibility for their duties, mutual equal relationships, and supporting the entire life to establish collaborative relationships and cooperate with home helpers.