Objective To investigate the preparedness and burden of old-aged family caregivers caring for elderly patients with urostomy, to analyze the correlation between the two variables, and to provide references for the management of continuous care in elderly care.Methods A total of 120 family caregivers of elderly patients with urostomy were surveyed using a general information questionnaire, the Caregiver Preparedness Scale (assessed at discharge), and the Zarit Caregiver Burden Interview (assessed one month after discharge).Results The total score for caregiver preparedness was （15.09±3.43） points, while the total score for caregiver burden was （39.63±5.35） points.A negative correlation was found between caregiver preparedness and caregiver burden (P＜0.05).Hierarchical regression analysis showed that after controlling the general information, caregiver preparedness explained 11.7% of the variance in caregiver burden.Conclusion Old-aged family caregivers caring for elderly patients with urostomy exhibit low levels of preparedness, with caregiver burden ranging from mild to moderate.The level of preparedness negatively impacts ca-regiver burden.It is essential to pay attention to the physical and mental health of these caregivers and to enhance their preparedness comprehensively, thereby reducing their caregiving burden.