The invention provides a contact technology of a magnetic read and a slide block and a disk body of a read-write contact type hard disk. A contact surface to which the magnetic read, the slide block and the disk body are contacted is at least one layer two-dimensional atomic crystal, is in a planar structure and extends to a side face of the magnetic head; the disk body has atomic-scale smoothness, and a contact surface on which the disk body is contacted with the magnetic head slide block is at least one layer two-dimensional atomic crystal or a diamond-like carbon (DLC) nanometer film. When the data is read, the magnetic head slide block and the disk body are always kept in atomic contact. The directly contacted two-dimensional atomic crystal two-layer structure between the magnetic head slide block and the disk body has non-coplanarity and is in a super-lubricating state, namely the friction force between the magnetic head slide block and the disk body is nearly zero. The magnetic head slide block is in atomic contact with the disk body, the distance between the magnetic head slide block and the disk body is greatly reduced, a DLC protective layer in the traditional magnetic head slide block can be completely canceled, the distance between the magnetic head slide block and the disk body is further reduced, and higher storage density, faster storage and reading speed and miniature hard disk equipment are realized.