The utility model discloses a transmission line steel -pipe pile basis, fixed channel -section steel, locating plate, several crab -bolt including steel pole, top flange, cross form, be equipped with anti side -pressing device on the steel pole, anti side -pressing device establishes the steel -pipe pile on the steel pole and sets up the steel sheet in the steel pole bottom including the voussoir, the cover that set up on the steel pole, the voussoir sets up the top at the steel -pipe pile, be equipped with microlith concrete layer between steel -pipe pile and the steel pole, the cross -section of voussoir is right angled triangle, and one of them right -angle side and steel pole are laminated fixedly mutually, the top of voussoir is equipped with around the steel pole setting, and the cross -section is the microlith concrete layer of wedge form, and this microlith concrete layer's inclined plane downward sloping sets up, and the perpendicular is fixed with the steel pole laminating. The utility model discloses a transmission line steel -pipe pile basis, through the setting of steel -pipe pile, voussoir and steel sheet, just can be effectual with steel pole fixing firmly, so just can not receive the influence of external soil property, the problem of the structure firmness reduction on steel -pipe pile basis appear.