This study will be divided into 2 groups, one group will implement a health education intervention program based on a family-centered empowerment model, and the other group will implement currently available care measures.And the questionnaire was completed for all patients within three days of admission, any day from three days after admission to three days before discharge, and on the day of the three days before discharge.

The control group will be offered a health education intervention program based on a family-centered empowerment model at their children next admission for chemotherapy treatment.

Three sessions of approximately 15-30 min each are conducted within 3 d of the child's admission to the hospital, from the fourth day to the day before discharge, and on the day before discharge. The researcher or charge nurse assesses the caregivers' mastery every week using uniform evaluation criteria and adjusts the topic or number of interventions within each phase based on mastery, with the final intervention content and timeline remaining unchanged.Health education includes: providing family caregivers of children with malignant tumors with knowledge of the disease, guidance on dietary care, instruction on how to recognize symptoms, guidance on medication, post-implantation precautions at the port of infusion, knowledge of blood markers, monitoring of the disease, and emergency treatment.

The Caregiver Preparation Scale was used to assess parents' preparedness to care for their children.This scale consists of eight items: preparedness for physical needs, emotional needs, service planning, caregiving stress, comfort care, coping with and managing emergencies, accessing medical information resources and help, and overall caregiving preparedness. A Likert five-point scale was used, with scores ranging from zero to four, indicating "not at all prepared" to "fully prepared," and higher scores reflecting better preparedness for caregiving.

The Family Caregiver Task Inventory (FCTI) was used to measure and evaluate family caregivers' caregiving abilities. The FCTI is a self-assessment scale that includes five dimensions: adapting to the role of a caregiver (five items), adapting to and assisting in caregiving (five items), dealing with personal emotions (five items), adjusting to the needs of personal life and caregiving (five items), and evaluating family and social resources (five items). It consists of a total of 25 items. The FCTI uses a three-point Likert scale, with zero indicating "no difficulty," one indicating "some difficulty," and two indicating "great difficulty." Higher scores represent greater difficulty and poorer caregiving capacity.

The Depression Anxiety Stress Scale (DASS-21) evaluates depression, anxiety, and stress levels in family caregivers. It contains 21 items across three dimensions: depression, anxiety, and stress. The depression subscale includes items 3, 5, 10, 13, 16, 17, and 21; the anxiety subscale includes items 2, 4, 7, 9, 15, 19, and 20; and the stress subscale includes items 1, 6, 8, 11, 12, 14, and 18. A Likert four-point scale was used, with scores ranging from zero ("did not apply at all") to three ("applied most or all of the time"). Higher scores indicate higher levels of depression, anxiety, and stress.