Salidroside is a compound extracted from the dried roots and rhizomes of Rhodiola sachalinensis or the whole dry grass. It has the functions of preventing tumor, enhancing immune function, delaying aging, anti fatigue, anti hypoxia, anti radiation, bidirectional regulation of central nervous system, repair and protection of body. It is usually used for the treatment of chronic diseases and vulnerable patients. It is used to treat neurasthenia and neurosis, improve attention and memory, high altitude polycythemia, hypertension; as an excitant, it is used to improve intelligence, improve autonomic nervous vascular tension disorder, myasthenia, etc.; it is used for diseases with increased free radicals, such as tumor, radiation injury, emphysema, senile cataract, etc; Also as a strong agent, for impotence and so on.