Stair formwork with side walls for construction site

The utility model discloses a stair formwork with side walls for a construction side. The stair formwork comprises a stair bottom face plate located at the bottom, side face plates arranged on the two sides of the upper portion of the stair bottom face plate and a formwork hanging steel beam, wherein the formwork hanging steel beam is provided with a plurality of stepping formworks which are arranged on the formwork hanging steel beam through L-shaped steel pieces and wood wedge plugs clamped and combined with the L-shaped steel pieces, split bolts are arranged between the stair bottom face plate and the formwork hanging steel beam, and an adjusting device is arranged at the upstream position of the formwork hanging steel beam. The stair formwork has the advantages that the stair formwork is convenient to splice and demount, the forming quality effect is good, the consistency of the width and the height of stair steps is good, materials are convenient to obtain, the service life is long, multiple times of circulation usage can be achieved, and the construction cost is low.