The invention relates to a power network equipment live-line state detection method based on real-time data. The method comprises the following steps: S1, obtaining an internal part list of power network equipment after the power network equipment is split; S2, through combining the internal part list with an external current direction and a switching state of the power network equipment in a GIS platform, obtaining an internal part live-line state and an internal current direction of the power network equipment; and S3, transmitting the internal part live-line state and the internal current direction of the power network equipment to a virtual reality power network platform through a background data interface and carrying out state display. Compared to the prior art, the method provided by the invention can display and determine live-line parts of the equipment in real time, strengthens safety production means, ensures safe, economic and reliable operation of a power system, and reduces incidence rate of personal injuries caused by accidents.