The present disclosure relates to a system and method for controlling home appliances that operates home appliances using a user terminal and controls the operation of the home appliances arranged in a space in consideration of the amount of power consumed in the space. In the present disclosure, when a first home appliance is operated, the first home appliance is operated only when the total power consumption of the first home appliance and other home appliances that are already operating is less than or equal to a reference value.