Carton inner support with built-in integrally-formed partition cards

The utility model discloses a carton inner support with a built-in integrally-formed partition card, which comprises an inner support box body, an extension plate wall is formed on the inner support box body in an extending manner, and the extension plate wall comprises the partition card and a sticking part which is formed between the partition card and the inner support box body and is used for sticking on the inner support box body; the partition card can be turned over relative to the pasting part and is used for dividing the inner space of the inner supporting box body into a lower containing interval and an upper containing interval. The inner space of the inner supporting box body can be divided into the lower containing section and the upper containing section by means of the partition cards, products can be placed in an orderly and layered mode conveniently, meanwhile, the shifting phenomenon of the partition cards can be reduced, and the risk that the products and the partition cards are damaged is