The increased potential for the lifespan of a child with cancer is largely due to advance in drug treatment, radiation treatment, and surgical techniques. In this generation cancer has become associated with chronic illness. Therefore supportive nursing intervention for children with cancer is needed to promote normal growth and development. This study was designed to develop and test the supportive nursing intervention program for promoting body image and self-esteem of children with cancer. The supportive nursing intervention program involved emotional, physical, informational, and social support. The subjects were 41 children with cancer(20 in intervention group, 21 in control group) in K city. Measurements were taken concerning body image and self-esteem from both groups during pre and post test. The data were analyzed using Cronvach's alpha, x2-test, paired t-test and t-test. The results were as follows: The intervention group had a more positive body image as measured by the Body Cathexis Scale(t=2.436, p=.020) and a more self esteem as measured by the Cpopersmith self-inventory (t=2.768, p=.009) than the control group at post test. According to this study, the supportive nursing intervention program was effective for promoting the body image and self-esteem of children with cancer. Repeated research is needed to develop a refined supportive nursing intervention program for children with chronic illness.