It introduces the service classification of the power data communication network and the service carrying mode

and analyzes the current service requirements of the power data communication network.Taking state grid east inner Mongolia electric power as an example

it comprehensively analyzes the current situation and existing problems of power data communication network from the aspects of technical system

network structure

link bandwidth

etc.It introduces multi-protocol label switching(MPLS)and the division of service virtual private network(VPN).According to the deficiencies of the current MPLS networking mode

it proposes software defined network(SDN) optimization ideas.Finally

it proposes two schemes for optimizing the construction of power data communication network based on network structure

link organization

and other aspects.It conducts a technical comparative analysis

and gives a recommended scheme with higher utilization rate of network resources and transmission efficiency.