One of the main subjects studied by population genetics is the Hardy-Weinberg equilibrium. In this context, this paper addresses the analysis and comparison of bayesian models used in its evaluation by the coefficient of disequilibrium. For this, it was carried out a simulation study in which the following prior distributions were considered: Dirichlet (model 1), beta -uniform step function (model 2), uniform -uniform step function (model 3) and independent uniform priors (model 4). Examples of application to real data for racial groups