The utility model relates to building steel technology field discloses a kind of
corrosion-resistant building steel structure connecting nodes, including support column, the middle part of the outer wall of support column is provided with connecting mechanism, the connecting mechanism includes connecting seat, the outer wall of the periphery of connecting seat is all set with multiple installation clamping groove, the outer wall of the periphery of connecting seat is all clamped with connecting block, the outer wall of connecting block side close to connecting seat is fixedly connected with reinforcing plate, the outer wall of reinforcing plate side close to connecting seat is fixedly connected with multiple installation clamping block, the periphery of connecting mechanism is all provided with positioning mechanism, and the positioning mechanism includes locating slot and mounting plate. In the utility model, the node is provided with connecting mechanism, and is connected by clamping limit and the mode of threaded fixing, so that user can replace the connecting block used for too long or damaged according to needs, so as to reduce the trouble of the node maintenance and improve the service life of node use.