The application discloses a packaging cover, including a baseboard and at least one corner structure. The corner structure includes a first region, a second region, a first fold line, a third region, a second fold line, and a fourth region. The first region has a slit, and one of the corners of the baseboard is inserted into the slit. The second region is folded with the first fold line as an axis to be perpendicular to the first region. The third region has a clamping groove. The third region is folded with the second fold line as an axis to be perpendicular to the first region. The fourth region has a fixing part. After the fourth region is folded with the second fold line as an axis, the fourth region is overlapped with the third region, and the fixing part is inserted into the clamping groove.