Abstract: To investigate the effect of initial grain size distribution on normal grain growth, Monte Carlo simulation was performed starting from an initial microstructure with the Weibull grain size distribution in two-dimension. The results show that the grain structure evolved alike with the initial, and the grain size distribution of the quasi-stationary state could be described well by the Weibull function but not by classical Hillert distribution. Comparison with some other results further suggests that Weibull distribution with different β values may well be used to describe the quasi-stationary grain size distribution.