Based on the background that demand response technology is limited by the level of information and communication in the demand side, the working principle, topology, application scenario and network mode of power line carrier communication applied to residential users are analyzed in this paper. Then the indicator requirements of different types residential user demand response service in the communication system are studied, and the specific data of indicator requirements is given. Finally, a large amount of experimental data are used to verify the feasibility of appling power line carrier communication to residential users’ demand response service. At the same time, the shortcomings of power line carrier communication are also pointed out.