A left-right parallel bipolar loop electrode. In a front section of the left-right parallel bipolar loop electrode, a metal tube (13) and a hard tube (22) are disposed in left-right parallel with each other at an interval, a ceramic insulation tube (11) is fastened on each head of the metal tube (13) and the hard tube (22), a terminal of the positive electrode (10) is connected to a conductor (16) having an insulation layer and led out from the hard tube (22) in a ceramic insulation tube (11) corresponding to the hard tube (22), another conductor (17) having an insulation layer is soldered with the metal tube (13), and rear sections of the metal tube (13) and the hard tube (22) are respectively sheathed by two insulation tubes (12, 21). In a rear section of the left-right parallel bipolar loop electrode, the gathered rear sections of the two insulation tubes(12, 21) are sheathed and covered at a flared portion of a metal straight tube (14) a rear end of the metal straight tube (14) is connected to a binding post(19), the binding post(19) is connected to a dual-core conductor (20), two conductors (16, 17) having insulation layers pass through the metal straight tube (14) and are separately connected to the dual-core conductor(20) correspondingly, and another terminal of the positive electrode (10) is fastened in another insulation tube (11). High frequency energy passes through the two conductors (16, 17) having insulation layers in the metal straight tube (14) and forms a loop in a working medium. The electrode has a desirable water leak resistant property and leaks less current.Linvention a trait à une électrode bipolaire pour circuit parallèle gauche-droite caractérisée en ce que, sur la partie du segment avant, un manchon métallique (13) et un tube rigide (22) sont disposés dans un espace de façon parallèle gauche-droite, le manchon métallique (13) et la partie tête du tube rigide (22) étant fixés respectivement sur un tube isolant en céramique (11). Une extrémit
