Objective To explore the influencing factors for family caregivers of people with dementia to participate in community peer support activities，and provide references for family support services with dementia in the community. Methods From April to May 2025，the purposive sampling was used to select 11 cases of family caregivers of people with dementia and 12 cases of community workers in Shihezi City for semi-structured interviews. Data was analyzed by the Colaizzi 7-step analysis method based on social ecological model. Results The influencing factors for family caregivers of people with dementia to participate in community peer support activities include personal-level factors such as meeting care needs，understanding and support，caregiver stigma，and limitations in participating in activities. Interpersonal-level factors include mutual assistance among caregivers, influence among caregivers，and the establishment of mutual trust relationships. Organizational-level factors include the lack of participation of professionals and the insufficiency of the depth of support content. Community and policy-level factors include the community’s attention, the community’s experience in providing elderly care services，the available resources in the community，the insufficiency of funds and policy support，and the lack of incentive mechanisms. Conclusion The implementation of the community-based peer support activities for family caregivers of people with dementia is influenced by multiple factors. Community healthcare professionals should adopt personalized support strategies to increase the participation rate of these peer support activities，integrate professional resources，and improve the quality of community care support，with the aim of reducing the stress and burden on caregivers and enhancing the quality of life for both people with dementia and their caregivers.
