A combination dining turntable includes a base unit (10) and a rotary unit (20) mounted on the base unit. The base unit has an endless shape and includes a plurality of connecting plates (11) connected with each other and with each having a rectangular or sector shape. Each of the connecting plates has a first end provided with at least one first connecting portion (13) and a second end provided with at least one second connecting portion (14). The rotary unit has an endless shape and includes a plurality of curved connecting pieces (21) connected with each other. Each of the connecting pieces has a first side provided with at least one first linking portion (22) and a second side provided with at least one second linking portion (23).