ABSTRACT Hypertensive emergencies are life-threatening conditions requiring immediate management. Family preparedness is essential for timely and appropriate response; however, evidence on effective educational strategies remains limited.This study aimed to evaluate the effectiveness of video-based versus leaflet-based emergency nursing education in improving family preparedness for hypertensive emergencies. A quasi-experimental pretest–posttest control group design was conducted among 60 family members of patients with hypertension. Participants were divided into a video-based education group and a leaflet-based education group. Family preparedness was assessed through knowledge, attitudes, and behaviors using validated questionnaires. Data were analyzed using paired-sample t-tests, Wilcoxon signed-rank tests, and Mann–Whitney U tests. The intervention group showed significantly greater improvements in knowledge, attitudes, and behaviors compared to the control group (p 0.05). The increase in good knowledge, positive attitudes, and appropriate behaviors was more pronounced in the video-based group, while the leaflet group showed smaller improvements. Video-based emergency nursing education was more effective than leaflet-based education in improving family preparedness for hypertensive emergencies. The video-based approach enhances knowledge, attitudes, and behaviors, supporting better early recognition and management of hypertensive crises. Further studies with larger samples and randomized designs are recommended. Keywords: Emergency Nursing, Family Preparedness, Hypertension, Leaflet-Based Education, Video-Based Education.