Super-hard materials have been developed for forty years in China. In the very beginning the super-hard materials were studied only in lab. Now they grow into a super-hard material industry. The yearly output has been over two billion ct. Some information sources said the yearly output has reached about two billion five hundred million ct. The super-hard material industry has become an important part that is absolutely necessary to develop our country's high technology. Meanwhile they are very important mill materials which were no substitute for in drilling industry. The information on this aspect is of significance for our developing modern exploration engineering and rock and soil engineering.