An electrosurgical handpiece (1) is described for the radiofrequency surgical treatment of tubo-nasal pathologies, such as hypertrophy of the middle and/or superior turbinates and/or of the torus tubarius, comprising a handle (2) and an electrodes supporting rod (3) firmly attached to the handle (2) and projecting from an end portion (22) thereof, the electrodes supporting rod (3) being bent and comprising: a first straight portion (5) proximal to the handle (2) - a second straight portion (6a) connected to the first portion (5) and bent in relation to the first portion (5) - a third straight portion (6b) connected to the second portion (6a), bent with respect to the second portion (6a) and comprising a free end portion fitted with two electrodes (9, 10).
