The evolution of electronic media has brought profound changes in the ways that adolescents communicate and learn. Strong concerns about potential positive and negative impacts on child and youth well-being. The aimed to study the pattern of technology use and identify the effect of technology usage on their sleep patterns, attention difficulties and academic achievement of adolescent's students. Cross-sectional descriptive research design was used. It was conducted at (10) secondary schools in Assiut city. The total number was 953 students. Four tools were used in collect the data; Tool 1 self- administrative interview questionnaire tool 2 Data about student's technology usage and sleep patterns, tool 3 Attention Difficulties scale and tool 4 Assessment level of academic achievement. The result of this study revealed that the most of the studied students (86.4 %) have computers at home and (94.3%) had their own cell phon. It was found that uses of technology are gender bias, the higher percentage of the technology users were males. Based on finding it was concluded that the technology play an important part in the adolescents' lives and the negative influence of the excessive use of technology on middle adolescents students, sleep, their attention abilities and academic achievement. So the researchers recommended that educational programs should be directed to the adolescent students about property use of technology.