Background. The objective is to elucidate the factors related to the positive feelings of family caregivers who are engaged in home-based elderly care. Methods. The study utilized the data of a cross-sectional citywide survey in Japan. The survey was conducted with 1,821 subjects and the final analysis was performed on 435 subjects. Questions for recipients such as those on their care levels, causes of care, whereas the primary caregivers were asked about whether they had positive feelings toward caregiving, and whether their opinion was reflected in care policies. Results. The factors s that showed a positive association with positive feelings were “the caregiver’s opinion is reflected in care policies” (OR: 5.05, 95% CI: 2.60–9.87) and “the caregiver is in good health condition” (OR: 2.02, 95% CI: 1.02–3.93). The factors that showed a negative association were “the caregiver is a daughter-in-law of the care recipient” (OR: 0.42, 95% CI: 0.21–0.82) and “the care recipient is an elderly person with cognitive impairment” (OR: 0.36, 95% CI: 0.18–0.70). Conclusions. The study suggests the necessity of providing support for caregivers in terms of empowerment and health management. Furthermore, they suggest that special attention should be paid to caregivers at risk of being unable to sustain positive feelings toward caregiving