The invention discloses a Chinese herbal medicine compound preparation for controlling dove trichomoniasis and a preparing method thereof. The compound preparation comprises at least one of radix dichroa, fructus cnidii, cortex phellodendri, radix stemonae, pericarpium zanthoxyli, herba schizonepetae, cortex dictamni, herba patriniae, radix astragali, radix glycyrrhizae, polygala tenuifolia, radixsophorae flavescentis, notopterygium root, radix sileris, gallnut, rhizoma atractylodis macrocephalae, Artemisia apiacea, Chinese pulsatilla root, Chinese prickly ash, lumbricus, herba artemisiae scopariae and rhizoma polygonati. The preparing method includes: crushing the raw materials; decocting; performing freeze drying; placing freeze-dried powder into purified water to obtain a traditional Chinese medicine suspension. The Chinese herbal medicine compound preparation is natural, green, free of pollution, capable of guaranteeing animal health, capable of killing and controlling trichomonadand increasing animal immunity at the same time, capable of lowering medicine side effects, capable of lowering mortality and capable of increasing animal productivity. The preparing method is simpleand applicable in process flow, capable of saving energy, environmentally friendly, incapable of generating wastewater, waste gas and waste residues and harmless to environments.