Objective: Determinig the healthy life style behaviours (HLSBs) and factors affecting their HLSBs of the students in High School of Health Sciences was aimed. Materials and Methods: The students (n= 712) educating in Firat University Elazığ High School of Health Sciences was the context of this descriptive study. 688 of students could be reached at the time of enrolment. Questions about sociodemographic characteristics, and some factors thought to be influential on healthy life style behaviours are asked, and a questionnaire that HLSB Scale is present were applied. Data were analysed using t- test, one-way analysis of variance. Results: 74.3 % of students were female, 25.7 % of them were male, with a mean age of 21.33±1.85 years. Mean HLSB Scale score of the students was estimated to be 121.75±18.86 points. The maximal mean points contributing to the development of healthy life style were related to selfrealization, responsibility for self-health, interindividual supportive measures in decreasing order, while habitual exercise accounted for the lowest means. Mean scores in HLSB scale were determined to be higher in senior class students, conceiving their socioeconomic status as being at moderate or higher levels, non-smokers, students who are statedly on routine exercise programs, and individuals whose self-assessment of their state of health as being of moderate and improved levels (p<0.05). Conclusion: The HLSBs of the students are found to be in moderate level. The significance of HLSBs should be recognized, and attempts to use them during daily life should be encouraged.