This multipurpose prop system has a wide range of applications, which can be used for various purposes such as support, system support, table form understructure, drop head slab system, and working tower. It features a unique connection structure between the main post and horizontal bracing. The connectors are prefabricated, allowing for the horizontal bracing to be conveniently installed at the desired height of the main post, ensuring efficient and flexible installation. The monolithic construction of the post and jack screw, combined with the built-in special device, eliminates the need to separate the post and jack screw during the movement and recovery of the assembled system support. This significantly enhances operational convenience, reduces construction difficulty and time costs, making it a reliable and highly efficient choice for construction projects.