The invention discloses an electric network data on-line analysis processing method, which comprises the following steps of 1, an electric network data collecting step; 2, a data preprocessing step: the collected electric network data is preprocessed; 3, a file generating step: the data is gathered after the preprocessing, and a .TXT text file is generated; 4, a data on-line calculation step: the data is subjected to on-line calculation in a configuration calculation platform; and 5, a data storage and display step. The electric network data on-line analysis processing method has the advantages that information such as metering gateway real-time data (electric quantity and load), latest electricity price data and integral line loss rate is used for carrying out real-time on-line processing on the data, and the on-line calculation and monitoring on electricity selling income, electricity buying expenditure, differential income, electricity buying quantity, electricity selling quantity, electricity buying average price, electricity selling average price and buying and selling price differences can be realized.