A composition for protecting liver, protecting intestines and enhancing immunity for freshwater fish is disclosed, including the following raw materials in parts by weight: 15˜27 parts of Andrographis herba, 18˜22 parts of Isatidis folium, 10˜15 parts of Polygonum hydropiper, 8˜12 parts of Rheum palmatum L., and 8˜12 parts of Galla chinensis. And the preparation and the application of the composition are disclosed. The composition of the disclosure has the effect of resisting bacteria, scavenge free radicals, clearing heat, detoxifying, preventing and treating enteritis and the like, which can effectively improve the immunity of the freshwater fish and ensure the health of the organism.

A composition for protecting liver, protecting intestines and enhancing immunity for freshwater fish is disclosed, including the following raw materials in parts by weight: 15˜27 parts of Andrographis herba, 18˜22 parts of Isatidis folium, 10˜15 parts of Polygonum hydropiper, 8˜12 parts of Rheum palmatum L., and 8˜12 parts of Galla chinensis. And the preparation and the application of the composition are disclosed. The composition of the disclosure has the effect of resisting bacteria, scavenge free radicals, clearing heat, detoxifying, preventing and treating enteritis and the like, which can effectively improve the immunity of the freshwater fish and ensure the health of the organism.