In the population suffering from cancer, children and teenagers are in the majority. For children with rapid development of body and mind, with the change of cognitive ability, they will feel anxiety and fear about the expected potential negative events. Painting art therapy is a kind of non-verbal psychological therapy through the interaction between the painter, the painting work and the therapist, with the painting creation activity as the intermediary. The purpose is to develop symbolic language, touch the inner subconscious, and integrate into the personality, so as to produce cognitive and behavioral changes. Painting therapy and psychological analysis can improve the treatment compliance of children bone tumor patients, make psychological nursing and health education of patients more targeted, and promote the cooperation between medical care and patients.

In the population suffering from cancer, children and teenagers are in the majority. For children with rapid development of body and mind, with the change of cognitive ability, they will feel anxiety and fear about the expected potential negative events. Painting art therapy is a kind of non-verbal psychological therapy through the interaction between the painter, the painting work and the therapist, with the painting creation activity as the intermediary. The purpose is to develop symbolic language, touch the inner subconscious, and integrate into the personality, so as to produce cognitive and behavioral changes. Painting therapy and psychological analysis can improve the treatment compliance of children bone tumor patients, make psychological nursing and health education of patients more targeted, and promote the cooperation between medical care and patients. Forty pediatric bone tumor patients meeting the requirements were selected from the bone and soft tissue ward of our hospital. Twenty subjects were randomly divided into experimental group and control group. The experimental group underwent psychological evaluation, drawing analysis and psychotherapy intervention before and after chemotherapy and surgery, while the control group only underwent psychological evaluation without drawing analysis and psychotherapy intervention. This experiment was designed to evaluate the change of psychological state of children after intervention. To verify whether the intervention has improved the psychological and cognitive aspects of the children.

Inclusion Criteria:

1. Ages 7-16
2. No gender limitation
3. Pathologically confirmed patients with osteosarcoma and Ewing's sarcoma
4. Have painting ability

Exclusion Criteria:

1. Those who do not cooperate
2. Family members or patients reject this treatment technique
3. The patient has severe intellectual disability;
4. The patient's condition is in critical stage or bone marrow suppression stage or complicated with serious complications.