The present invention relates to a multistage vertical solar module holder. According to the present invention, because solar modules are installed between vertical members vertically installed on the bottom surface in a ladder type in multiple stages to be inclined by inclination maintenance units, a large number of solar cell modules can be installed in a single area and a large number of modules can be installed in a plurality of rows. Further, a shadow of an upper module does not hide a lower module by maintaining the vertical interval of the modules sufficiently, and the holders can be installed while rows of modules and the sunlight irradiation angle can be sufficiently maintained, so that high efficiency of solar power generation can be realized. In addition, because several rows of solar modules are installed in multiple stages by utilizing a vertical space for the solar module on the ground such as a rice paddy, a field or a forest, solar power generation can be realized together with farming, which helps the economy of farms. Further, because the solar modules can be installed in a narrow place such as the side of a road, the side of a railroad, and a bank, a new economic effect can be obtained.