Study aim: Primary Objective: To evaluate the effect of self-compassion training on the reactions of family caregivers of elderly individuals with chronic diseases. Design: Randomized, parallel-group, single-blind clinical trial with 70 family caregivers of elderly individuals with chronic diseases. Participants will be randomly assigned to intervention (self-compassion training) or control (usual care) groups. Randomization will be performed using block randomization with concealed allocation. The study will be conducted at a single urban health center. Settings and conduct: The trial will be conducted at a single urban health center. Family caregivers will be randomly assigned to intervention (self-compassion training) or control (usual care). The study is single-blind, with outcome assessors and data analysts blinded. Participants/Inclusion and exclusion criteria: Family caregivers of elderly with electronic health records. Providing ≥20.5 hours/week of care for at least 3 months. Age ≥18 years. Ability to speak Persian and use a smartphone with internet. No prior self-compassion training or psychological disorders. Unwillingness to continue participation. Missing more than one session. Severe illness, family crises, or death of the elderly during the study. Intervention groups: Intervention: Eight 45-min self-compassion sessions including mindfulness and emotional regulation. Control: Usual care, no intervention. Main outcome variables: Caregiver reactions; positive reactions; negative reactions; changes in reaction scores before and after intervention; comparison between intervention and control groups