ABS TRACT This study was conducted to investigate the relationship between individuals' personal values and the principles of care ethics. The descriptive-cross-sectional study was carried out between January and August 2019. Data were collected whit the form of socio-demographic characteristics and ethical questions created by the researchers in line with the literature, and a case and value scale with evaluate care ethics. It was also found that 75% of the nurses had taken ethics courses, 53% had faced ethical dilemmas, 38% of those who faced ethical dilemmas acted in line with their values. Additionally, 54% responded to the question 'how frequently do you put ethical principles into practice?' with 'generally,' while 32% responded that patients, 31% said the hospital, and 25% said physicians were factors preventing them from putting ethical principles into practice. When evaluating the hierarchy of values scale, it becomes evident that moral value ranks first, followed by religious value in the second position, and theoretical value in the seventh position. Additionally, statistically significant correlations were observed between the sub-dimensions of the scale and ethical principles: aesthetic value and confidentiality (p=0.01), religious value and first/emergency aid (p=0.00), theoretical value and autonomy (p=0.01), and justice/equality (p=0.02). Furthermore, a statistically significant positive correlation was found between political value and confidentiality (p=0.03). The present study showed that factors related to personal care are among the most important obstacles to observing professional ethics from the perspectives of nurses. As a result of the study, personal values affect care ethics practices.