A food packaging cup comprises a cup body, an inner film bag disposed in the cup body and a cup lid structure for sealing a cup mouth of the cup body. A bag mouth of the inner film bag is connected with the cup body by a detachable structure, a liquid receiving inner cavity is formed inside the inner film bag, the inner film bag can be separated from the inner wall of the cup body, and an air hole communicated with a gap between the inner film bag and the cup body is formed on the cup body. The food packaging cup is simple in structural production, low in cost, and convenient for various classes of consumers to further drink up thick fruit juice, milk, fermented milk, yoghourt and the like, thereby avoiding residues in the cup. Moreover, garbage of two different materials can be sorted clearly.