This research aimed to explore the energy savings through the use of smart control as well as ceiling fan in intelligent building. As the energy consumption of air-conditioning (AC) accounts for about 40% of total residential energy, therefore, applying smart control system to the use of AC to achieve the effects of comfy and energy savings should be able to generate positive effect for the energy consumption of overall residential. This study used the smart control system in the intelligent building lab to transmit message to AC for its implementation of next operating step through the indoor temperature sensor in order to achieve energy saving effect.