The care of older adults with disabilities (OADs) in China is mostly provided by their adult offspring. As the population continues to age, carer stress will increase. A survey of 900 adult child caregivers of OADs was conducted in Nanjing City, Jiangsu Province, China, and used to investigate the status and stress levels of caregivers in order to explore effective support for offspring caregivers and suggest improvements to the social care system. Multiple linear regression models were used to examine the effects of coping strategies on carer stress. Caregivers experienced stress at moderate or high levels due to physical, psychological, financial, and work issues. Stress was significantly associated with OADs' health status and self-care ability, and the amount of care time. Caregivers sought help from their families to care for elderly parents, which significantly relieved stress. The purchase of social care services and professional medical services for OADs significantly reduced stress; however, for elderly persons with high self-care ability, the purchase of social care services increased caregiver stress, while government-subsidized family nursing allowances reduced it. It is necessary to focus on the role of family care to stimulate mutual family support, and to integrate society and government support systems.