The invention relates to a traditional Chinese medicine composition taking the traditional Chinese medicinal materials of plants and animals as raw materials and treating eye diseases and a preparation method thereof, in particular to a traditional Chinese medicine composition for treating pseudomyopia and a preparation method thereof. The preparation method of the traditional Chinese medicine composition comprises the following steps: after decocting parts of the raw materials of the traditional Chinese medicinal materials into an extract, drying the extract into extract powder, and then grinding the other parts of the raw materials of the traditional Chinese medicinal materials together into the fine powder of the medicinal materials; mixing the extract powder, the fine powder of the medicinal materials and auxiliary materials, preparing soft materials and forming pellets. The effective rate and the cure rate of the medicine preparation are both enhanced, acting is quicker, the illness can be more consolidated for a longer time after treating, and the medicine preparation does not have any side effect. The number of the traditional Chinese medicine medicinal materials used in the preparation method of the traditional Chinese medicine composition is greatly reduced, the technique is simple and the product cost is lowered.