The invention relates to the field of home decoration, in particular to a home plate connecting device, which includes a plate and plate connecting piece, a glass and plate connecting piece, a plate bottom edge and ground connecting piece, a decorative plate and plate connecting piece, a doorframe and wall connecting piece and a plate chamfer connecting piece, wherein each of the connecting pieces is provided with a rubber barbed tenon structure and a mortise structure with a barbed accommodation groove. According to the invention, the mortise and tenon structures and a threaded connection manner are adopted for fixation, so that the device can be freely dismounted and conveniently packaged and transported; each part is matched, and is easy to position, so that mounting and dismounting working efficiency is improved; and the dismounted parts are prevented from damage, and are high in reutilization rate, so that the device can be widely applied to the field of home mounting and decoration.