Home is the most comfortable place where we relax and live. There is a variety of electrical equipment control switches at home, and usually each of them is just controlled by single device with different operations, making inconvenience and time consuming in operating these electrical devices. Therefore, how to establish a smart space where using one common device to control all possible electrical equipment has gradually become an important issue. In recent years, people are getting more and more living space concepts of smart household appliance, and many domestic construction companies are bringing the smart household appliance into the buildings. However, in the smart home market, users still need to be familiar with the complex control operations but control panel sometimes only 1-2 buttons. This paper aims at designing and implementing a smart home system for users at home. Through the use of smart phone, users can manipulate electrical equipment and adjust the status of electrical equipment immediately.