The utility model discloses an oval shape, side flying open aluminum cigarette box, belonging to the cigarette technology field, especially relating to the cigarette packaging technology. The box body of the oval shape, side flying open aluminum cigarette box is an oval shell with each end of the long axis having a side plane being perpendicular to the long axis, the lower end of which is sealed, while the upper end of which opens and arranges a box body upper edge that is a little smaller then the upper end opening and matches with the box cover. A joint that can be opened and closed along is arranged on the top of one side plane of the box cover and one side plane of the box body, with a retaining mechanism on the other side plane of the box cover, while on top of the same side plane with the retaining mechanism, a retaining piece matching with the retaining mechanism is equipped, with the button controlling the opening and closing of the retaining piece also arranged on the same side plane. The upper edge of the box body is separated or continuous. The utility model is of reasonable design, simple structure, easy operation and being beautiful and practical, which is a product with great economic efficiency and social efficiency.