The utility model discloses an all -round angle steel fixed connector, the screw of reversing bar upper end is passed to the connecting rod level, make connecting rod and reversing bar threaded connection, the switching -over fixing clip is for being two of " L " type, connecting rod and reversing bar pass the round hole on the base that corresponds the switching -over fixing clip respectively, the side cardboard of each fixing clip that commutates parallel and have certain clearance with connecting rod and reversing bar respectively, adjusting bolt can be for different thickness a plurality of, they overlap respectively on connecting rod and reversing bar, and respectively rather than threaded connection, the ingot bolt is three, wherein two connect both ends about the connecting rod respectively soon, the another one connects the lower extreme at the reversing bar soon. The utility model discloses can fix the angle steel of installing the orientation on the shaft tower wantonly, be convenient for tool and shaft tower fixed connection such as flat ladder for it is firm reliable to fix tool such as putting down the ladder on the angle steel, and easy operation.