Abstract: Purpose of this paper was to assess influence of school leadership strategies on students’ behaviors managements in secondary schools in Rwanda Case of public Gasabo secondary schools. This research was supported with organizational theory and production theory. The researcher used descriptive research design for data collections. The participants were students, teachers, Head teacher, deputy head teachers in charges of discipline and studies. All respondents were 1485 including 45 HTs, 45 DOD, 45 DOS,225 teachers,450 parents and 675 Students from 45 schools located in Gasabo District, Rwanda. The Yamane formula was used to calculate the sample size of 315 respondents. The participants will be chosen by using different methods where researcher used random sampling and purposive sampling. Researcher used questionnaire and interview guide as data collection instruments where Questionnaire was designed to students, parents and teachers and interview guide were designed for schools’ heads and deputy school heads in charge of disciplines and studies. Researcher used IBM.SPSS 21.0 in analysis procedure.