The invention discloses a printing and dyeing industrial wastewater treatment apparatus. The apparatus comprises a waste water tank, wherein the waste water tank is connected with a water inlet, a waste water tank cover, an outer convex concave groove, a filtering net, a first pipeline, a first water pump, a first one-way valve, a water pressure box and a mixing tank, the water pressure box is connected with a water outlet pipe, fixing columns, a first spring fixing tray, a first spring, a flexible bladder, a push block, round holes, a guide column and a position-limiting baffle block, the upper side of the push block is provided with a first connecting plate, a first supporting cylinder, a second connecting plate, a rectangular sliding groove, a rectangular supporting strip, a third connecting plate, a second supporting cylinder, a cylindrical plug, a second spring, a second spring fixing tray and supporting strips, the mixing tank is connected with a partition plate, a material discharge hole, a reagent storage tank, a reagent storage tank cover, a buckle, a visible strip, a fixing groove, a rotating shaft, stirring blades, a second pipeline, a second water pump, a heating tank and a filtering tank, and the filtering tank is equipped with a row pipe, a water conveying pipe, a gas pipe, air coolers, a filler port, air outlets, a drain pipe, a manual valve, a first activated carbon layer and a second activated carbon layer.