The invention belongs to the technical field of environmental protection and energy saving, and particularly relates to an S-shaped drop catcher. The S-shaped drop catcher is generally applied in a tubular dust collector behind a desulfurizing tower of a boiler and a flue behind a flue gas condensation water-saving device, and is used for catching condensed water separated out from flue gas. The S-shaped drop catcher comprises a drop catcher frame (1), a drop catcher blade (2) and converging holes (4), wherein multiple S-shaped drop catcher blades (2) are arranged in the drop catcher frame (1); converging holes (4) are formed in the bottom of the drop catcher frame (1). The S-shaped drop catcher is formed by welding high nickel base alloy materials or processed and molded by anti-corrosion organic materials at one time, is simple in structure, reliable in strength, excellent in corrosion resistance and high in drop catching efficiency.