The invention relates to the technical field of fine chemical engineering, and concretely relates to a down feather detergent composition. The down feather detergent composition comprises, by weight,30-50 parts of a surfactant, 15-28 parts of tea seed cakes, 10-16 parts of plant ash, 5-15 parts of white carbon black, 3-9 parts of a curing agent, 2-6 parts of an enzyme preparation and 100-150 parts of washing water of rice. The feather down detergent composition uses ethylene glycol stearate, phosphatidylcholine and triglyceride as the surfactant, so the detergency of the down feather detergent composition is improved; the curing agent is added to make the down feather detergent composition stable, so the service life of the down feather detergent composition is prolonged; and the enzyme preparation is added to further enhance the detergency of the down feather detergent composition.