A result of the great progress that has occurred in the field of Artificial intelligence, emerging of a concept smart homes or home automation, which offer many benefits of comfort and safety to owners. Safety plays a major role in today’s world and it is necessary that good safety systems are to be implemented in places of education and work and home. In this paper, the survey of different smart home systems for gas leaking detection is discussed as their advantage as well as the concept of smart home , and the used communication techniques in order for these systems to operate with high quality are discussed by comparing the gas leaking detection systems and determining which of the communication techniques is more used, less expensive, and easier to use.