The purpose of this study was to assess the practices and challenges of leading school forrnimprovement in some selected Government secondary school of Majang Zone, Gambella State.rnThe study is conducted under this title to show the practices of school principal for the leadingrnschool for improvement and to assess the Challenges of School principal for the leading schoolrnfor improvement and to come up with some possible solutions. To conduct this study arndescriptive survey research design was employed. In this Zone there are 2 woredas. For thisrnstudy total populations and total sample were 171 and 139 respectively. The total samplernrespondent were 83 teachers, 34 class representative students, 12 representative schoolrnimprovement committee, 4 WEO experts, 2 external supervisors and 4 principals as sources ofrninformation from the four selected Government secondary schools. The researcher used differentrnsampling techniques for respondents. The collected data through closed questions were analyzedrnusing descriptive statistical tools as frequency percentage, mean, weighted mean and the overallrnmean, likert scale was used to analyze the responses of respondents. The data gathered throughrnopen- ended questions and interviews were analyzed qualitatively through narration for thernpurpose of triangulation. The findings of the study indicated below average practices ofrnsecondary school principals in implementing school improvement program domains such as,rnteaching-learning, community participation, healthy school environment domains. They also hadrnabove average practices of school leadership and management domain, but there are somernactivities related to these four domains were low practiced by school principals. Regarding thernchallenges; lack of experience ,low level of creating good communication, commitment of thernschool principals and teachers, shortage of budget, insufficient school facilities can affect thernschool principal in leading school for improvement. In line with the above findings andrnconclusion, it was recommended that principals, external supervisors and school improvementrncommittee in collaboration with Woreda and Zone education office design and works on how tornbring the experienced teachers to the leadership position, to give short and long term training