The invention relates to a capsule for improving liver damage and body fatigue and a preparation method thereof, belonging to the technical fields of medical technology and health food. The capsule of the present invention comprises the following components in parts by weight: 200-500 parts of reduced glutathione, 30-250 parts of turmeric extract, 30-200 parts of taurine, 38-170 parts of filler, 40 parts of binder ~60 parts, disintegrant 10~26 parts, lubricant 2~14 parts. The capsule of the present invention uses reduced glutathione, turmeric extract, and taurine as main raw materials, can increase the level of glutathione in the body and make it reach a steady state, and effectively improve liver damage and body fatigue; the capsule of the present invention The capsule formula is scientific, convenient to take, and has stable and remarkable efficacy.