[Preliminary exploration on TCM literature of Heishuicheng collected in Russia].

The Heishuicheng literature collected in Russia was excavated by the Russian explorer Kotzlov at the remained site of Heishunicheng of Xixia in Inner Mongolia early this century, and carried back and preserved in Petersburg, Russia. This rare treasure was well and secretly hidden in clandestine room for a long period, not known to any other people. The detailed contents and characteristic and appearance of the valuable TCM literatures among them and its academic and research significance are explored here.