An object of the present invention is to provide a circulation type conveying device easily transportable, easily assembled in installation, and useful for a user by projecting tables. The circulation type conveying device (1) comprises a base (2), a carrying unit (3) placed on the upper part of the base (2) and cyclically moving carried articles, and the tables (4a) and (4b), wherein the base (2) is opened at least on one part of its upper side, the tables (4a) and (4b) are movable between a position where the opening of the base (2) is closed and a position where they are projected outwardly from the base (2) to open the opening, the carrying unit (3) is able to be placed on the opening portion of the base (2), and the tables (4a) and (4b) and the carrying unit (3) are immovably assembled into the base (2) when the carrying unit (3) is placed on the base (2).