The purpose of this study was to investigate the quality of life on patients with hematological cancer and the relationship between their quality of life and background variables. This study was conducted from December 1, 1993 to May 31, 1994. Forty patients with hematological cancer were selected by random sampling. The Quality of Life Index was used as a tool to collect data. Forty questionnaires formed the basis for data analysis. The results indicated that the mean score of Quality of Life Index on the patients with hematological cancer was 19.71. Of the five factors which determine the quality of life, the intimacy factor achieved the highest mean. Followed by the family factor, the environmental factor, the psychosocial factor, and the health factor. Three items had the top mean scores in the life quality items: the relationship with spouse, sex life, and health care. The amount of paint, the ability to influence government and one's own health were the items which had the lowerst mean item scores. The Wilcoxon scores test found no statistically singnificant difference between patient background variables and life quality in general, but there was a statistically significant difference between frequence of chemotherapy and environmental factors in life quality.