The present research aimed to study quality control techniques used by secondary school teachers in district Lahore to improve educational outcomes. The link between quality control measures, secondary school teachers' performance, and target accomplishment was examined in particular. The study's sample was selected by convenient sampling technique and included 418 secondary school instructors from 200 secondary schools. Questionnaire QCMSSGA was adapted to collect data on quality control measures and secondary school goal achievement (QCMSSGA). It was found that the instrument has a coefficient of reliability ranging from 0.75 to 0.81. Analysis including frequency distribution and Pearson product-moment correlation. Secondary school pupils who received high-quality supervision and teacher evaluations were more likely to meet their objectives. Due to the reasons mentioned earlier, secondary school instructors were instructed to conduct more frequent, routine instructional monitoring and pay greater attention to teacher performance evaluations.