Abstract: Despite of the large number of studies related to earning differentials there are very few studies that attempts to estimate earning differentials for the workforce working in technical education institutions especially in Case of Lahore. Therefore, this study is designed to examine the factors that affect the earnings of the worker working in the technical educational institutions of Lahore District of Punjab province of Pakistan. Mincerian Human Capital Earning Function Approach was used to estimate the earning differentials of the workforce working in technical educational institutes of Lahore. Primary data was collected for the sample of 1168 respondents in 2015 directly from the field in order to conduct the current study. Empirical analysis indicates that education, experience, training acquired, computer usage, institution from where respondent had completed their secondary school certificate (SSC), gender, family status and family background were found to be contributing factors towards the earnings of the workforce of various categories of the technical educational institutions in Lahore. Results also recommend that implementation of such policies and development programs that reduces or minimizes the earning differentials among the staff which arise on the basis of occupation (teaching and non-teaching).