Chinese family caregivers of dementia patients suffer considerable grief in their caregiving activity; little research has been conducted on dementia caregivers' grief in China. This study aims to (a) confirm the factor structure of the Mandarin version of the Marwit-Meuser Caregiver Grief Inventory-Short Form (MM-CGI-SF), (b) evaluate the levels of family caregivers' grief, and (c) explore the best predictors of family caregivers' grief. A cross-sectional study was conducted to collect data from 91 caregivers of dementia patients.