The invention relates to a steering folded scaffold unit for building construction. Each steering folded scaffold unit comprises upright poles, scaffold boards and a protective net, wherein the upright poles are vertically and parallelly arranged and separated into a left group and a right group, each group includes at least two upright poles; the scaffold boards are positioned between the left group and the right group of the upright poles and horizontally arranged in multiple layers, and one ends of each layer of the scaffold boards are rotationally connected with the upright pole positioned at one side through a hinge, and the other ends of the layer of scaffold boards are connected with the upright pole positioned at the other side through a detachable pin shaft; and the protective net is arranged between a left upright pole and a right upright pole which are positioned at the outer side and at least divided into two parts in a longitudinal direction, and adjacent parts are rotationally connected through hinges. The steering folded scaffold unit has the advantages of simple and fast folding method, small folded size and storage space and transportation cost saving, and is convenient and reliable in use.