In this study, to analyze the effects of the traceability system on the livestock product markets, a simulation model, which is composed of supply and ex ante as well as ex post demand, is developed based on the results of a consumer survey. Survey results indicate that consumers are willing to pay an average of 17.76% higher price for traceable beef than for non-traceable beef. On the other hand, consumers are willing to pay an average of 15.01% higher price for the pork for which traceability is available. As a result of the simulation model analysis, it is estimated that the price of Korean beef would have been decreased by 3.53% and the sales volume would have been decreased by 8.4% unless there was the introduction of traceability system. In addition, it is analyzed that the price and sales volume of domestic pork would have decreased by 2.68% and 8.64% without the traceability system.