A sliding structure includes an upper substrate and a lower substrate. Two first slide grooves are disposed at a first end of the upper substrate, and the two first slide grooves are disposed opposite to each other. Two first slide rails are disposed at a first end of the lower substrate, and the two first slide rails are disposed opposite to each other. The two first slide rails are respectively assembled in the two first slide grooves. Two second slide rails are disposed at a second end of the upper substrate, and the two second slide rails are disposed opposite to each other. Two second slide grooves are disposed at a second end of the lower substrate, and the two second slide grooves are disposed opposite to each other. The two second slide rails are respectively assembled in the two second slide grooves.