A substation frame comprising: a supporting assembly comprising at least two supporting posts arranged at intervals, the at least two supporting posts comprising one side supporting post at each end, the two side supporting posts being a first side supporting post and a second side supporting post, respectively; a beam assembly comprising a beam provided between every two adjacent supporting posts; wherein both sides of the substation frame are divided into a first side and a second side along a plane where an axis of the beam assembly and an axis of the supporting assembly are located; wherein a side wire attaching assembly is provided on each side supporting post (1121, 1122) and positioned on a side of the side supporting post (1121, 1122) facing away from the beam, wherein the beam is made of composite insulating material, and a position on the beam between the two supporting posts is capable of being directly configured as a first wire attaching point; wherein at least one of the side supporting posts (1121, 1122) comprises a first supporting part and a second supporting part that are connected to each other, the first supporting part being located between the beam and the second supporting part; characterized in that the substation frame further comprises: a first supporting insulator located on the second side and comprising a first end connected to the first side supporting post and a second end opposite to the first end, and the second end being a free end; and a first tension insulator located on the first side and having a first end disposed on the first side supporting post and a second end that is a free end, wherein the free end of the first tension insulator is configured as a second wire attaching point, the first supporting part consisting of an insulating body with a rubber shed covering an outside thereof, the second supporting part being made of metal material, and a connection between the first supporting part and the beam assembly being capable of being directly configured as a third wire attaching point; and wherein the free end of the first supporting insulator is configured to support a wire attached to the third wire attaching point at the connection between the first supporting part and the beam. a supporting assembly comprising at least two supporting posts arranged at intervals, the at least two supporting posts comprising one side supporting post at each end, the two side supporting posts being a first side supporting post and a second side supporting post, respectively; a beam assembly comprising a beam provided between every two adjacent supporting posts; wherein both sides of the substation frame are divided into a first side and a second side along a plane where an axis of the beam assembly and an axis of the supporting assembly are located; wherein a side wire attaching assembly is provided on each side supporting post (1121, 1122) and positioned on a side of the side supporting post (1121, 1122) facing away from the beam, wherein the beam is made of composite insulating material, and a position on the beam between the two supporting posts is capable of being directly configured as a first wire attaching point; wherein at least one of the side supporting posts (1121, 1122) comprises a first supporting part and a second supporting part that are connected to each other, the first supporting part being located between the beam and the second supporting part; characterized in that the substation frame further comprises: a first supporting insulator located on the second side and comprising a first end connected to the first side supporting post and a second end opposite to the first end, and the second end being a free end; and a first tension insulator located on the first side and having a first end disposed on the first side supporting post and a second end that is a free end, wherein the free end of the first tension insulator is configured as a second wire attaching point, the first supporting part consisting of an insulating body with a rubber shed covering an outside thereof, the second supporting part being made of metal material, and a connection between the first supporting part and the beam assembly being capable of being directly configured as a third wire attaching point; and wherein the free end of the first supporting insulator is configured to support a wire attached to the third wire attaching point at the connection between the first supporting part and the beam. a first supporting insulator located on the second side and comprising a first end connected to the first side supporting post and a second end opposite to the first end, and the second end being a free end; and a first tension insulator located on the first side and having a first end disposed on the first side supporting post and a second end that is a free end, wherein the free end of the first tension insulator is configured as a second wire attaching point, the first supporting part consisting of an insulating body with a rubber shed covering an outside thereof, the second supporting part being made of metal material, and a connection between the first supporting part and the beam assembly being capable of being directly configured as a third wire attaching point; and wherein the free end of the first supporting insulator is configured to support a wire attached to the third wire attaching point at the connection between the first supporting part and the beam.