The utility model relates to a four-circuit 330kV alternating-current power transmission line angle tower having an angle of 60-90 degrees. The four-circuit 330kV alternating-current power transmission line angle tower comprises a tower body, a ground wire cross arm, an upper lead cross arm, a middle lead cross arm and a lower lead cross arm, wherein the ground wire cross arm is arranged on the top of the tower body, and the upper lead cross arm, the middle lead cross arm and the lower lead cross arm are orderly arranged under the ground wire cross arm from top to bottom and connected with the tower body. The angle of the angle tower ranges from 60 to 90 degrees. In order to satisfy an electrical gap, the top of the ground wire cross arm, and the bottoms of the upper lead cross arm, the middle lead cross arm and the lower lead cross arm are all designed into a rectangle shape, and the top openings of the upper lead cross arm, the middle lead cross arm and the lower lead cross arm are as wide as the joints with the tower body, respectively; a double-nut bolt is applied to the entire angle tower to prevent the angle tower from becoming loose, and therefore, safe line operation is guaranteed.