Background: Depressive symptom prevalence among long-term care facility (LTCF) residents is increasing. Accordingly, this study examined psychological service needs, their utilization and influencing factors, and discrepancies between needs and utilization. Methods: This was a cross-sectional study. Residents of 13 community-based LTCFs in Northern Taiwan answered a structured questionnaire covering demographics, health status, psychological service needs, and service utilization. Results: Participants were 117 residents with an average age of 80.2 and a mean of 3.4 diseases; 79.5% had severe disabilities and 77.8% showed depressive tendencies. Except for pain care, needs for all services exceeded utilization, with the highest discrepancy observed for psychological assessment (Mean: -2.12, SD: 1.33). Depressive symptoms were a significant predictor of this discrepancy (R^2: 27.9%, β: -0.51, t: -6.64, p < 0.001). Conclusion: Psychological needs and service use assessment should be included in LTCF routines to reduce depressive symptoms and improve quality of life.