Fabricated tower foot anchoring device and anchoring method

The invention relates to a fabricated tower foot anchoring device and anchoring method.The anchoring device comprises a plurality of tower foot parts, each tower foot part comprises a stand column, a plurality of anchoring parts are arranged on the periphery of the lower portion of each stand column, each anchoring part is correspondingly provided with a distribution beam, and the distribution beams clamp and fix the anchoring parts through a plurality of anchoring prestressed tendons; the anchoring prestressed tendons are pre-buried in the foundation, at least one anchoring part in the tower foot component is connected with a limiting key, and one end of the limiting key is pre-buried in the foundation. The tower foot components are clamped through the anchoring prestressed tendons and the distribution beams, the anchoring prestressed tendons are embedded in the foundation, the tower foot components are not embedded in the foundation, the tower foot components can be repeatedly used, the cost is reduced, whe