In this study, the effect of communication with a guardian of a recipient of a Long-term Care Program on job satisfaction of care helpers of in-home care facilities for the elderly is analyzed. First, most of the care helpers are content with their job despite low pay and short work-hour. Especially, they are aware of the need of communication with a guardian but skeptical about the need of having intimacy with a guardian, so the relation between a care helper and a guardian is usually formal only. Second, in terms of characteristics of a guardian, care helpers have higher job satisfaction when a guardian is a male and old, and does not have an unreasonable demand. Third, they have higher job satisfaction when they have better communicate with a guardian rather than higher intimacy. Considering this result, we should make programs such as education for a guardian to develop intimacy with a care helper and one for a care helper to develop intimacy and communicate effectively with a guardian. It is also needed to have guidelines which set up relationship between a helper and a guardian.