Internet addiction prevails among students who uncontrollably immerse themselves in it as a way of escaping from their challenges and stressors which may negatively affect their quality of life. Aim of this study: to investigate the prevalence of internet addiction and its influence on quality of life among students of the technical institute of nursing, Mansoura University. Methods a descriptive cross- sectional research design was used to achieve the aim of this study. The present study was conducted at the Technical Institute of Nursing, Mansoura University, Egypt, a total of 341 students were recruited after considering ethical requirements. Three tools were used to collect the needed data; the socio-demographic characteristics, Young's internet addiction test (IAS) and Quality of life questionnaire (QOL). Results: 16.1% of the sample was considered addicted to the internet and 64.0% of participants had high quality of life. A highly statistically significant strong negative correlation between internet addiction and quality of life was reported (r=0.43, P<0.001). Conclusion: improper internet use negatively affects quality of life. Recommendation: a large scale further research should be conducted on large sample to investigate internet addiction among university students.