Ring structures of conjugated polymers have become attractive because of their special configuration, unique features, and the difficulty in achieving uniformity despite the simplicity in shape.Here, we report a simple scheme to fabricate rings of conjugated polymers based on the breath figure technique.In humid atmosphere, the rapid evaporation of solvent induces the condensation followed by coalescence of water droplets on the cooling solution surface.The polymer precipitates around the water droplets to protect them from evaporating at the initial stage.