A bra cup shaped breast cushion comprises a first impermeable membrane layer (1), a hygroscopic material layer (2), a nonwoven fabric layer (3) and a second impermeable membrane layer (4). The first impermeable membrane layer (1) adheres to the nonwoven fabric layer (3) to form a cavity. At least one set of elastic components (5) are placed at the adhering part between the first impermeable membrane layer (1) and the nonwoven fabric layer (3). The hygroscopic material layer (2) is located in the cavity. There is at least one notch (6) on the edge of the hygroscopic material layer (2). The second impermeable membrane layer (4) adheres to the nonwoven fabric layer (3) to form a pocket shape. The hygroscopic material layer (2) with the notch (6) is more easily formed into the shape of a bra cup under the tension force of the elastic components (5), so as to make the breast cushion fit the breast. The elastic components (5) have a certain elasticity, so they can adapt to users with different breast shapes to some extent. When breast milk spillage is relatively large and cannot be absorbed quickly by the hygroscopic material layer (2), part of the breast milk can be stored in the pocket formed by the second impermeable membrane layer (4) and the nonwoven fabric layer (3).