The invention discloses an insulator equalizing ring configuration structure of a same-tower same-window double-loop compact transmission line, which comprises insulator strings arranged in a racket-shaped tower window and is characterized in that the insulator strings are connected to form three U-shaped structures, wherein each U-shaped structure is formed by connecting three insulator strings through multiple conductor hardware fittings; the three U-shaped structures are suspended in the racket-shaped tower window in upper, middle and lower layers; and each insulator string is a compound insulator string, one end of the duplex compound insulator string near the transmission conductor is provided with a double-ring equalizing ring, and one end near the tower side is provided with a single-ring equalizing ring. The equalizing ring configuration can equalize the electric field distribution of the compound insulator string in the same-tower same-window double-loop compact racket-shaped tower, prevent the corona discharge and the electrical erosion on the high-voltage side of the compound insulator string and enhance the operating reliability of the same-tower same-window double-loop compact transmission line.