Objective To explore the psychological distress experiences of caregivers of adolescents with idiopathic scoliosis, and to provide a reference for targeted psychological intervention. Methods A descriptive phenomenological research method was employed. Semi-structured in-depth interviews were conducted with 31 caregivers of adolescents with idiopathic scoliosis. Data were analyzed using Colaizzi′s seven-step phenomenological approach. Results Six themes were identified:uncertainty of the disease, excessive concern about the patient′s physical appearance, worries about the patient′s quality of life, concerns about the patient′s mental health, pressure from lifestyle adjustment within the family, and a mix of anxiety, depression, and hope. Conclusion Caregivers of adolescents with idiopathic scoliosis experience various psychological distress. Healthcare professionals should develop practical psychological intervention strategies to alleviate caregivers′ distress level.