The current investigation is a struggle to find the University’s environment’s contributions to the teachers’ performance in Khyber Pakhtunkhwa. The overall population under this study was 4000 teachers and 79000 students enrolled in 19 universities of Khyber Pakhtunkhwa. Different sampling techniques were used at different levels (Multistage). At the first stage out of 19 public sectors HEC recognized general universities, only six universities were selected through simple random sample technique. At second stage a stratified random sample of 270 students of six universities was taken for this study. Two questionnaire one for performance of teachers and second for internal environment was used. The ANOVA, t-statistic and Regression were used. The result shows the significant contributions of environment in the teachers’ performance