Abstract.As is known to all, home is an important part of the whole social system. With the great changes have taken place in the way of life and life concept, the requirements of the environment in Smart Home are becoming strict increasingly. So I design a system with sensors, the communication module of TD-LTE, the embedded processors, peripheral function module and so on. When the sensors are sensing the unreasonable situation, through the mobile network, the processor reflects to our mobile phones with SMS or making a phone call accompanied by sound and light alarm. As the same time, the system can be able to specify the number to call, hang up, answering the phone, text messaging and other basic function of communication. Using the system, the problems of poor security of traditional living environment such as gas leak or invasion of thief, can be deal with in time.