Simple-connection stable storage device

The invention discloses a simple-connection stable storage device. Comprising a storage unit, and the storage unit comprises a layer plate, corresponding surrounding plates and penetrating connectors. The surrounding plates are connected to the two sides and the rear side of the layer plate respectively, and the penetrating connectors are arranged on the layer plate and correspondingly connected with corresponding locking holes in the surrounding plates respectively. The simple-connection stable storage device further comprises a self-service locking device, the self-service locking device comprises a self-service adjusting type auxiliary lock body and a locking groove formed in the side wall of the corresponding side of the penetrating connectors, and the self-service adjusting type auxiliary lock body is connected between the penetrating connectors and the corresponding surrounding plate in a self-adjusting clamping and locking mode through the locking groove. According to the simple-connection stable stora