The main objectives of the study were (a) to identify The Administrative Functions Of trainee teachers. (b)To find out the impact of FDP in improving the administrative functions of thetrainee teachers. Sample of the study consisted of those teacher who were working in higher education institution and received training under faculty development program organized by Higher Education Commission (Pakistan). The researcher collected the data from 84 trainee teachers who attended the faculty development program organized by Higher Education Commission (Pakistan). The researcher prepared questionnaire on three Likert type scales for the trainee teachers for the collection of data to find out how far, as a result of FDP, they are affective in the classroom. Percentage was applied for statistical treatment. Conclusions and recommendations were drawn on the basis of findings.