Side-lying breast feeding back cushion

The utility model relates to the technical field of breast feeding auxiliary articles, and discloses a side-lying breast feeding back cushion, which comprises a headrest, a first back cushion, a second back cushion and a connecting part, and the first back cushion and the second back cushion are respectively fixed with the headrest through the connecting part; the headrest comprises a headrest body and a top pillow which forms an obtuse included angle with the headrest body and is fixedly connected with the headrest body; the top pillow comprises at least two layers of pillow cushions with the same thickness, one side of each layer of pillow cushion is fixed with the headrest body, and the other side of each layer of pillow cushion is movably connected. The height of the headrest can be adjusted to meet the requirements of different people for the height of the headrest, and the lifted arm close to one side of the bed surface can be supported; lateral lying lactation can be achieved on the left side and the r