A valve cover of a compressor having a discharge chamber, a muffling chamber, and a connecting passageway connecting the discharge and muffling chambers, includes a first metal plate having depressed portions for individually defining portions of the muffling chamber and the connecting passage. The compressor valve cover also includes a second metal plate having depressed portions for individually defining portions of the discharge chamber and the muffling chamber. The first and second metal plates are joined to form an integral structure having the discharge chamber, the muffling chamber and the connecting passage defined by the depressed portions, and having the integral structure bent at a passage of the connecting portion so that the first metal plate forms an inner part of the bent portion and so that a predetermined angle is formed between the discharge chamber and the muffling chamber.