Assembling platform system for large steel structural component

The invention provides an assembling platform system for a large steel structural component, each sub-platform comprises a steel bottom plate, a steel plate platform matched with the steel bottom plate and a leveling assembly used for leveling the steel plate platform, the steel plate platform is provided with a mounting hole used for placing the leveling assembly, and the steel plate platform is provided with a mounting hole used for placing the leveling assembly. Platform connecting grooves are formed in the edges of the steel plate platforms, and the steel plate platforms of every two adjacent sub-platforms are connected through the platform connecting grooves and matched connecting steel plates to form an assembly platform system. The steel plate platform is fixed to the steel bottom plate, and assembling platform grouping and leveling are completed through the adjusting bolts, the locking studs, the platform connecting grooves and the like. And after being leveled, the device can be suitable for assembli