Modular filing cabinet

The utility model discloses a modular filing cabinet, including a plurality of sub - cabinets, sub - cabinet includes a rectangular frame, and the frame hinges through the loose -leaf between the adjacent sub - cabinet to being divided into the multilayer down from last, and the loose -leaf lies in the upper and lower both sides at the two sub - adjacent both ends of cabinet respectively, all separated for two left and right storehouses by the followed frame of vertical setting horizontal slip's partition panel for every layer of the frame, the level is equipped with the folded sheet in left storehouse, and the folded sheet is wavy connecting plate by a plurality of hinging from beginning to end each other and constitutes, the little bin of a plurality of is separated into by the followed frame of vertical setting horizontal slip's space bar in right side storehouse, has opened a plurality of bar breachs on the left surface of every space bar from top to bottom, and it has extending or a shorten expansion pla