In the evaluation of losses due to building damage during earthquakes, it is necessary to comprehensively consider the variability of response, damage, and loss, even when the earthquake motion intensity is fixed, and Monte Carlo simulations are required to account for these variabilities. Among the economic losses, the repair time requires consideration of the repair schedule corresponding to the damage distribution, and therefore a rational and automated evaluation method has not been established. This paper proposes a method to evaluate the repair time integrated in the MCS by utilizing a method to automatically generate a logical network of repair schedules.