The utility model discloses a light -duty scissors stair template, including base, fixed side forms, the side forms of marking time, die block and plugging plate, wherein, the base is connected with the locating plate of vertical setting, and fixed side forms one side is equipped with rotatory gusset and the supporting legs of vertical fixation on fixed side forms, and the relative other end of connecting fixed side forms end of rotatory gusset articulates on the locating plate. The opposite side that rotatory gusset side is connected relatively to fixed side forms is located to the side forms of marking time, and the die block level sets up in the base top, fixed side forms set up side by side with the side forms of marking time and both equal vertical fixations on the die block, plugging plate seals regional side opening between die block and the fixed side forms, regional formation stair molding area between fixed side forms, the side forms of marking time, die block and the plugging plate. The utility model has the advantages that the whole structure is simple single, be convenient for realize, with low costs, tear open, the die -filling is convenient, can avoid because of tear open, die -filling and concrete casting in -process prefabricates the adverse effect that efficiency and quality caused to stair.