The invention discloses a power network quality analysis method based on real-time operating data. The power network quality analysis method comprises the following steps: obtaining basic data of a power network through real-time monitoring of the current scale and operating status of the power network; generating a plurality of evaluation indicators according to the basic data of the power network, and carrying out power network quality analysis according to the evaluation indicators. The power network quality analysis method provided by invention has the advantages that through effective usage of the data generated in a real-time manner during operation of the power network, a comprehensive evaluation indicator system can be established for power network quality analysis and evaluation, so that reasonable power network planning and objective evaluation of the power network planning can be achieved.