The invention relates to a conductor support frame for mechanical vibrating deicing of a three-bundle conductor, which comprises an icebreaking head and a clamping part which are connected with each other. The clamping part is of a V-shaped or U-shaped structure and comprises a mounting table and a left supporting part and a right supporting part which are symmetrical mutually and are arranged onthe mounting table. One end of the mounting table is in threaded connection with the icebreaking head, while the other end thereof is connected with the bottom ends of the left and right supporting parts. The top ends of the left and right supporting parts are respectively provided with a left connection part and a right connection part. A middle connection part is arranged between the left and right supporting parts. The angle between the left and right supporting parts is between 10 and 170 degrees. The ratio of the distance between the left and middle connection parts to the distance between the right connection part and the mounting table is between 1:5 and 4:5. The left, middle and right connection parts are respectively provided with a connection groove. The conductor support frame not only has simple structure and firm clamping, but also has better deicing effect and higher deicing efficiency.