Packing structure and assembling method thereof

An assembling method of a packing structure comprising:

• providing a plurality of first dividing plates, wherein the first dividing plates are arranged at intervals, each of the first dividing plates has two sides opposite to each other, each of the sides has two first inserting slots, and a positioning portion is foinied between the two first inserting slots;
• providing two side plates, wherein each of the side plates has a plurality of positioning slots;
• and
• respectively disposing the two side plates at the two sides, wherein an extending direction of each of the first inserting slots is perpendicular to the corresponding side plate, the step of disposing each of the side plates at the corresponding side comprises respectively inserting the positioning portions into the positioning slots of the corresponding side plate, each of the side plates has two folding walls, the positioning slots are located between the two folding walls, and the step of disposing each of the side plates at the corresponding side comprises respectively inserting the two folding walls into the two first inserting slots of the corresponding side.