An LCD device and its case, the case includes a front frame and a back cover cooperating with each other and a fastener for assembling them together, and side walls of them are overlapped and holes are disposed in the side walls correspondingly. It further includes a connector member, the connector member includes a fixing portion closely fitted with a bottom wall of the back cover; a connecting portion closely fitted with the side wall of the front frame; a stopping portion inserted into the holes in the side walls of the front frame and the back cover correspondingly; an installation pole is disposed on the bottom wall of the back cover, the fixing portion of the connector member has an installation hole corresponding to the installation pole, the fastener goes through the installation hole and is fastened in the installation pole, and thus the connector member is fixed.