A waterproof and shockproof cover for a PAD computer is disclosed. The cover comprises an upper housing, a base housing, a glass, a first rubber ring, a second rubber ring and four shockproof elements. The base housing is corresponding to the upper housing, wherein the upper housing comprises a first connection and the base housing comprises a second connection corresponding to the first connection for fastening with each other. The upper housing comprises a viewing window hole and a first groove formed around the rim of the viewing hole, and the first rubber ring is disposed within the first groove. The glass covers the viewing window hole and the first rubber ring. The four shockproof elements disposed respectively at four corners of a rectangular accommodation space of the base housing for bearing the PAD computer.