The invention discloses an electric operation mechanism with double output shafts for an AC high voltage isolating switch, which comprises a shell (1), wherein the shell (1) is provided with two groups of electric operation modules inside, each electric operation module comprises a motor, a deceleration device, an output shaft I (2) and an output shaft II (3); output ends of two motors are connected with the output shaft I (2) and the output shaft II (3) respectively through the deceleration device; one part of the output shaft I (2) and the output shaft II (3) extends out of the inside of theshell (1), the part of the output shaft I (2), extending out of the shell (1) is connected with an isolating switch transmission shaft through a connecting clamp I (4), and the part of the output shaft II (3), extending out of the shell (1) is connected with an earthing switch transmission shaft through a connecting clamp II (5); two output shafts I (2) and two output shafts II (3) are fixed witha lockout disk (6) respectively; and gaps of two lockout disks (6) mutually unlock oppositely and mutually lock when mutually staggered.