The invention provides a refrigerator storage box (1) which can not only ensure the good installation ability and the easy use of separating bodies (3), but also ensure the small thickness, the firmness and the difficult damage of the separating bodies (3). The refrigerator storage box (1) comprises a box body (2) and at least one separating body (3), wherein at least one group of guide structures (4) is correspondingly arranged on the inner wall surfaces of both opposite side walls of the box body (2), and the separating bodies (3) are inserted into the guide structures (4), thereby the separating bodies (3) can be accurately installed on the box body (2) according to a designed angle without any special alignment, the installation ability is improved, and the bottom of the box body does not need to be also provided with a lower fixed groove like the prior art. In addition, even if a foreign material (9), such as ice, and the like, which is difficult to remove is attached on the inner wall of the bottom of the box body (2), the separating bodies (3) can be also clamped in the guide structures (4).