The invention relates to a radioprotective medicament, and particularly relates to a radioprotective medicament prepared by using traditional Chinese medicine as raw material herbs. The medicament is used to treat and prevent problems of reproductive system radiation hazard, and comprises the following herbs by mass: 90-150 parts of medlar, 90-150 parts of semen cuscutae, 40-70 parts of cistanche, 40-70 parts of raspberry, 25-40 parts of prepared rehmannia roots. The medicament of the invention can be prepared into any commonly used oral dosage form by routine traditional Chinese medicine preparation methods, such as pills, powder, tablets, capsules, oral liquid, etc. The medicament has the efficacy of tonifying kidney, replenishing essence, and tonifying qi, and has obvious effect on ionizing radiation resistance and spermatogenic cell protection.