Repeatedly assembled plate and assembling structure thereof

The invention discloses a repeatedly assembled plate and an assembling structure thereof. The repeatedly assembled plate comprises a repeatedly assembled plate body and connecting and locating pins, the outer edge of the periphery of the repeatedly assembled plate body is provided with rack-shaped rectangular concave-convex-structure assembling sides, all the assembling sides correspond to one another in a concave-convex manner and can be horizontally or vertically inserted into one another for connecting and assembling, a connecting and locating through hole is formed in the convex part of each assembling side, and the connecting and locating through holes and the connecting and locating pins meet the connecting and assembling condition. The repeatedly assembled plates can be extendedly assembled in a plane shaped like a Chinese character 'tian' and can also be vertically connected and assembled in an L shape, and various plane-structure assembling and three-dimensional-space-structure assembling can be achi