Construction site cost display device

The utility model provides a construction site cost display device, which relates to the technical field of engineering cost and comprises a main plate and an auxiliary plate. Fixing strips are welded to the left sides and the right sides of the front end faces of the auxiliary plate and the main plate correspondingly. A connecting assembly rod is clamped in the fixing strip; the connecting assembly rod comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are fixedly connected in an inserted mode, and two sets of sliding blocks are welded to the first connecting rod and the second connecting rod respectively. The rear end face of the sliding block is attached to the front end face of the main plate and the front end face of the auxiliary plate, when the first connecting rod and the second connecting rod are connected in an inserted mode to form a whole, the sliding block can be driven to move, and the edges of project cost display data laid on th