This study examine an empirical evidence of the specific impact of public health expenditures on life expectancy in Pakistan using time series data span between 1980 and 2016.This study made use of the recent bound testing co-integration approach developed within the frame work of the autoregressive distributed lag (ARDL) procedure to determine the long run relationship between public health spending and life expectancy in Pakistan. Empirical finding suggest that a long run relationship between health expenditure, life expectancy, literacy rate exist in Pakistan. The results show that GDP and mortality rate insignificant and indirectly influence the rate of life expectancy of Pakistan. On the other hand GDP and mortality rate was found to be insignificant in both short run and long run contrary to economic theory. Therefore, based on the finding of this study recommends that government should increase and restructure the public health expenditures allocation to the health sector. Supervisor:- Dr. Muhammad Jahangir Khan