The utility model relates to a tower crane landing leg anchor, including the tower crane landing leg, be equipped with 4 anchorage holes on the bottom plate of tower crane landing leg tower crane landing leg locating plate, 4 blocks of lower anchor boards, 4 lower anchor heads, 4 finish rolling screw -thread steels, 4 go up anchor board, 4 and go up the anchor head, every lower anchor board level sets up in the pier enlarges the basis, the lower extreme of 4 finish rolling screw -thread steels passes the anchorage holes of 4 blocks of lower anchor boards respectively perpendicularly, the bottom is fixed by 4 lower anchor heads respectively, tower crane landing leg locating plate is located the pier and enlarges basic top, and the tower crane landing leg sets up on tower crane landing leg locating plate, corresponds every anchorage holes department of tower crane landing leg bottom plate, sets up a last anchor board, 4 the upper end of root finish rolling screw -thread steel is passed from lower to upper in proper order anchorage holes on tower crane landing leg locating plate, tower crane landing leg bottom plate, the last anchor board to it is fixed by last anchor head.