OBJECTIVE: HRQoL and transitional care are crucial for HFrEF patients in improving outcomes and reducing readmissions. This study aimed to investigate whether transitional care strategies would improve the health-related health of life (HRQoL) for heart failure with reduced ejection fraction (HFrEF). METHODS: Five databases including PubMed, CENTRAL, EBSCO, Web of Science, and CNKI were searched for eligible studies on Dec 15, 2022. In this study, we mostly focused on HRQoL, mean difference (MD), and standard deviation (SD) of scores from the questionnaires that were pooled. Results were shown in forest plots, and the Cochrane risk-of-bias tool (RoB2) was used to assess the bias risk. In the meta-analysis, mean differences and standard deviations were calculated to analyze the data. Heterogeneity analysis was conducted using RevMan 5.3 software (The Cochrane Collaboration, London, United Kingdom). RESULTS: Ten randomized controlled trials were included in this study, with key inclusion criteria including specific time frames, population characteristics, and transitional care interventions considered. Three types of evaluation tools including the Short Form 36 Health Survey (SF-36), the quality of life in a questionnaire, and patients' self-assessment were used for evaluating the HRQoL. Except for SF-36 (MD=1.05, 95% CI=-0.54 to 2.65, I2 = 0%, P = .20), transitional care had a positive effect on HRQoL in the quality of life in a questionnaire (SMD=0.50, 95% CI=0.35 to 0.66, I2 = 88%, P < .01), and patients' self-assessment (SMD=0.70, 95% CI=0.70 to 0.54, I2 = 96%, P < .01). Transitional care improved both physical health (SMD=0.20, 95% CI=0.06 to 0.34, I2 = 85%, P = .005) and emotional health (SMD=0.13, 95% CI=0.00 to 0.26, I2 = 73%, P = .05) of HFrEF patients. CONCLUSION: Transitional care significantly improved the HRQoL of HFrEF patients and should be widely promoted. The improvement in Health-Related Quality of Life (HRQoL) is significant for HFrEF patients as it enhances their overall well-being and functional abilities. Implementing transitional care in healthcare settings can be practical by ensuring seamless coordination between different healthcare providers, providing patient education and self-management support, and facilitating smooth transitions between hospital and home care settings.