1, scarcity. The number of ancient Chinese medicine books is limited, especially precious ancient books, and there are often only a few books, and their market supply is very limited.

2. Strong sense of protection. As cultural heritage and historical documents, ancient Chinese medicine books are widely protected. Many ancient Chinese medicine books are regarded as national treasures and protected by laws and regulations. Therefore, the sale of these ancient books requires strict examination and approval procedures.

3. High academic value. The ancient books of traditional Chinese medicine bear rich knowledge of traditional Chinese medicine and traditional medical wisdom, and their importance to academic research and academia is self-evident. Many ancient Chinese medicine books are treasured by major libraries, research institutions and academic institutions and are not easily sold.