BACKGROUND The purpose of this study was to examine the percieved family support of the women with breast cancer and the affecting factors. METHODS The subjects were breast cancer cases undergoing treatment (n=240). The sample for this study was formed by women who accepted participation, were in the facility between the dates and hours when the study was applied, and who were selected with a nonprobability sampling technique (n=120). RESULTS Two thirds of the women with breast cancer were in the 40-59 age group. The lowest score women with breast cancer for perceived family support scale was 0.00 and the highest was 40.0, with a mean of 30.1±8.85. CONCLUSION In this study, it was determined that perceived family support of Turkish women with breast cancer was reasonable.