Polystyrene particle sandwich composite lightweight partition board fixing structure

The utility model discloses a polystyrene particle sandwich composite lightweight partition board fixing structure. The polystyrene particle sandwich composite lightweight partition board fixing structure comprises polystyrene particle sandwich composite lightweight partition boards; every polystyrene particle sandwich composite lightweight partition board is connected with a ground structure layer through an inverted-L-shaped steel bar; one arm of every inverted-L-shaped steel bar is inserted into the ground structure layer in an inclined mode; the other arm of every inverted-L-shaped steel bar is inserted into the corresponding polystyrene particle sandwich composite lightweight partition board in an inclined mode; every two adjacent polystyrene particle sandwich composite lightweight partition boards are spliced through a concave and convex structure, wherein an anti-cracking belt is bonded in a splicing gap; the positions of the slicing gap of every two adjacent polystyrene particle sandwich composite lightweight partition boards are connected through an inclined insertion steel bar. The polystyrene particle sandwich composite lightweight partition board fixing structure is reasonable in structure, good in fixation effect and convenient to construct.