Objective To explore the effectiveness of board game-based health education in enhancing fluid management among patients with chronic heart failure,thereby improving their fluid management capabilities. Methods Using convenience sampling,190 heart failure patients hospitalized in the cardiology department of a tertiary hospital in Zhejiang Province from April 2024 to April 2025 were selected. They were randomly assigned via a random number table to either an intervention group(n=95) or a control group(n=95). The intervention group received board game-based health education on fluid management,while the control group received conventional fluid management health education. After the intervention,the fluid management compliance rate,fluid management knowledge level,self-management behaviors,and length of hospital stay were compared between the 2 groups. Results Finally,90 patients in the intervention group and 92 in the control group completed the study. The fluid management compliance rate in the intervention group(92.22%) was higher than that in the control group(75.00%). The fluid management knowledge level in the intervention group was(16.57±2.16),higher than(13.88±2.67) in the control group. The self-management behavior score in the intervention group was(67.86±9.24),better than(51.46±8.75) in the control group. The length of hospital stay in the intervention group was(8.27±3.58) days,shorter than(10.56±3.27) days in the control group. All these differences were statistically significant(P<0.05). Conclusion Board game-based health education can improve the fluid management compliance rate and knowledge level of patients with chronic heart failure,enhance their fluid management behaviors,shorten the length of hospital stay,and improve patient prognosis.