The invention discloses a novel node structure for a power transformation frame rectangular section angle iron frame girder wire hanging board. The novel node structure comprises pieces of frame girder chord member angle iron (1), pieces of frame girder vertical member angle iron (2), a piece of first supporting angle iron (3), a piece of second supporting angle iron (4), a piece of third supporting angle iron (5), a cross-shaped wire hanging board (6), vertical member connecting boards (7), first chord member connecting boards (8), second chord member connecting boards (9), bolts (10), wire hanging holes (12) and pieces of frame girder diagonal web member angle iron (13). The novel node structure for the power transformation frame rectangular section angle iron frame girder wire hanging board is simple and practical in structure and reasonable in stress, the cross-shaped wire hanging board is good in integration and high in strength, the connection between the cross-shaped wire hanging board and the rectangular frame girder is reliable, force transmission is clear, and the shear bearing capacity at the wire hanging holes is high.