The advantage of this utility model is that when in use, it can conveniently and quickly make multiple individuals with the same shape and structure tightly interlock with each other, and then buckle up the edges and corners, quickly forming a beautiful exhibition platform without the need for tools or excavation of the ground. It is easy to install and disassemble, and is very suitable for laying the ground in temporary places such as exhibitions and exhibitions, with light weight and compact structure, Easy to carry.