A boot-beam type pillar base joint component for a tubular pillar comprises a square bottom plate (1), a square cover plate (3), a square frame (4), the tubular pillar (5), internal reinforcing plates(6) and external right trapezoid reinforcing plates (7), wherein a cross-shaped partition (2) is welded to the bottom face center of the square bottom plate (1); the square cover plate (3) is locatedover the bottom plate, the overall dimension of the square cover plate (3) is larger than that of the bottom plate, and the square cover plate (3) is provided with a center square hole; the square frame (4) is arranged in the square hole of the cover plate and used for connecting the bottom plate with the cover plate, the square frame (4) is higher than the cover plate, and the bottom of the square frame (4) is welded to the bottom plate; the tubular pillar (5) is arranged at the center of the square frame, and the bottom of the tubular pillar (5) is welded to the bottom plate; the internal reinforcing plates (6) are welded between the tubular pillar and the square frame in a radial manner; the external right trapezoid reinforcing plates (7) are welded to the periphery of the square frame, and the tops and the bottoms of the external right trapezoid reinforcing plates (7) are welded to the cover plate and the bottom plate correspondingly; and kidney-shaped holes or U-shaped notches (8) to which anchor bolts can be installed are formed in the periphery of the cover plate, and the external reinforcing plates and the kidney-shaped holes or U-shaped notches are staggered. The boot-beam type pillar base joint component for the tubular pillar is easy to machine and manufacture and convenient to install and can meet the requirement for base safety and shock resistance in high-intensity regions.