摘要:School culture plays an important role in the success of a school. The purpose of the study was to find out the effectiveness of school culture on teachers’ performance at secondary schools of Khyber Pakhtunkhwa, Pakistan. It was quantitative study. The research design of the study was co-relational and survey type. Population of the study comprised of 197 secondary schools of District Malakand, Khyber Pakhtunkhwa. Population of the study includes all the 197 secondary schools principals (public =78, private =119) and the 10th grade students enrolled in these schools for the academic year 2015-16, of District Malakand. To reduce the sampling error a representative sample were selected. Stratified random sampling technique was used to select 60% of secondary schools to get their principal perception. The homogenous purposive sampling technique was used to select four students from each selected school. Therefore sample for this quantitative study was 118 principals (public=47, private = 71) and 482students (public =188, private =284) of class ten. SPSS (Version, 21) was used to analyze data using mean, standard deviation, Pearson correlation, multiple regression and t-test statistics.