The invention discloses a portable grounding wire pile, which comprises a metallic wiring rod and a metallic grounding base. The wiring rod comprises a cylindrical rod body. A ring groove is arranged on the outer cylindrical surface of one end of the rod body. Two grooves with width and depth corresponding to the width and the depth of the ring groove are arranged between the ring groove and the end surface of the corresponding end. A plugging blind hole is formed in the other end of the rod body. A threaded hole which is perpendicularly communicated with the plugging blind hole is formed in the side wall of the plugging blind hole. The grounding base comprises a cylindrical shell which is matched with the wiring rod. Convex blocks which are respectively matched with the grooves are arranged in the shell. A bottom plate is welded at one end of the shell. A grounding screw on which a compression spring is sheathed is arranged between the two convex blocks and the bottom plate in the shell. The wiring rod is clamped and fixed with the convex blocks in the shell of the grounding base through the grooves at the end part and the grounding pin is press-fit. A radial lock hole for installing a lock is formed at a corresponding assembling position between the wiring rod and the shell. The portable grounding wire pile has the characteristics that the design is reasonable, the structure is simple and the portable grounding wire pile is convenient to use and flexible to disassemble and assemble.