The invention discloses a biscuit packaging bag with a collision and breakage protection function. The biscuit packaging bag comprises a packaging box, the packaging box is wrapped by an external packaging bag, a first storage bin, a second storage bin and a third storage bin are embedded in the packaging box at equal intervals, a first plastic support is connected between the first storage bin and the second storage bin, a second plastic support is connected between the second storage bin and the third storage bin, and shock absorption rubber pads are connected between the bottoms of the first storage bin, the second storage bin and the third storage bin and the packaging box. In the biscuit packaging bag, firstly, by arranging separation plates, biscuits in each storage bin can be separated, the biscuits in the storage bins are prevented from collision and breakage, meanwhile the shock absorption rubber pads at the bottoms of the storage bins can carry out overall protection on the biscuits in the storage bins, and thus the biscuits can be effectively protected, and collision and breakage are prevented.