Tianyou single crystal superhard materials include high temperature and high pressure method single crystal diamond, CVD method single crystal diamond and cubic boron nitride, etc. The high temperature and high pressure method single crystal diamond is to place the assembled pyroxylite synthetic block in the six-sided top press chamber, and through high temperature and high pressure, the single crystal epitaxial growth is carried out. After taking out the synthetic block and refining, the single crystal is selected and graded. High temperature and high pressure single crystal diamond is characterized by high hardness and orderly lattice arrangement, with the mass production of large six-sided top press and the development of technology, the size of high temperature and high pressure single crystal diamond is becoming larger and larger.