The invention discloses a Chinese herbal medicine compound preparation for treating primary osteoporosis. The preparation is prepared from a kidney tonifying Chinese herbal medicine and medical adjuvant. The kidney tonifying Chinese herbal medicine is prepared from, by weight, 30-9 parts of Herba epimedii, 30-9 parts of Rhizoma Drynariae, 30-9 parts of glossy privet fruit, 30-9 parts of Achyranthes bidentata and 25-6 parts of Angelica pubescens. According to the preparation, the treating rule of kidney warming and reinforcing is followed. Animal experiments show that high-level bone resorption and bone formation caused by ovariectomization can be reduced, so that a balanced state that bone formation is higher than bone resorption is recovered, and the bone mass is increased; osteocalcin secretion is promoted, and the osteogenic differentiation capacity is improved. By means of the preparation, symptoms of primary osteoporosis can be relieved, recurrence is reduced, and the therapeutic effect is consolidated; the problems of temporary decoction before taking Chinese herbal decoction, molding and deterioration due to placement for a long time and inconvenience brought to a patient can be avoided.