Temporary protective stair railing

The utility model discloses a temporary protective stair railing, in particular to a temporary protective stair railing applied to the field of constructional engineering. The temporary protective stair railing can be repeatedly used in various stairs with different stair angles and different bench intervals and comprises adjustable assemblies and cross bars, wherein each adjustable assembly comprises a vertical bar, moving sleeves and movable connection sleeves, the moving sleeves can move in the axial direction of the vertical bar, the movable connection sleeves are hinged with the moving sleeves, and the end parts of the cross bars are fixedly connected with the movable connection sleeves. The moving sleeves can move in the axial direction of the corresponding vertical bar, so that the positions of the moving sleeves on the corresponding vertical bar can be adjusted as required, further, the movable connection sleeves are hinged with the moving sleeves, accordingly, the moving sleeves can rotate for a certain angle relative to the movable connection sleeves, and the requirement for different angles of the stairs can be met through matched use of the moving sleeves and the movable connection sleeves.