The utility model provides a rotatory over -and -under type goods shelves, including the goods shelves body, hoist mechanism, the direction curb plate, a controller, control panel and at least one supporter, all set up a supporter positioning mechanism on each supporter, two sets of hoist mechanism are relative to be set up on goods shelves body two inside relative lateral walls, each hoist mechanism of group includes four clamping orient sprockets that are square distribution, promote chain and electric drive mechanism, four clamping orient sprockets distribute and set up on the inside wall of goods shelves body, promotion chain cover is put and is taken turns to at four clamping orient chains, relative setting is inboard at two promotion chains respectively for two direction curb plates,all set up the promotion guide slide and the U type motion slide that run through the curb plate that leads on each direction curb plate, the supporter both sides are connected with the promotion chain. All supporters in these goods shelves all can be followed and promoted the chain lower position that turns round to can realize depositing the goods at the lower position, greatly reduced depositthe goods degree of difficulty.