The general method which has been widely used for computation of Uncertainty of measurement is law of propagation method as discussed in Guide for Uncertainty of Measurement (GUM). Numbers of other new methods, with the time, have been evolved for the assessment of Uncertainty of measurement. Among those methods, Monte Carlo Method, now has been given the most emphasis and has been recommended by JCGM wide its supplement for Uncertainty of measurement. This paper is an attempt to discuss briefly, the procedure and role of Monte Carlo Method technique in Uncertainty of measurement.