Abstract: In recent years , with the improvement of construction of smart grid and the degree of city energy internet , electricity TD-LTE wireless network in power system is used more and more widely , to meet the increasing demand of power communication services . This paper studies the load and adaptation of distribution automation service in TD-LTE power private network . Finally , this paper analyzes the security risks of TD-LTE power private network , and puts forward specific security protection strategies and measures for security risks .