The present invention provides an implant capable of being formed in an appropriate needed shape based on expectations such as a bone nail, a bone plate, a cage, a plate, or a sheet, etc., or a bone grafting implant for substituting an autogenous bone. The implant includes at least one or two different small 3D hollow units with multiple dimensions, which are spliced regularly or interlaced with equal or unequal hollow bodies, and are integrally formed a 3D wire grid formed bodies with multidimensional mesh open space having different densities. The small 3D hollow units are constituted of multidimensional wire rods to form 3D geometric-shaped hollow bodies in a round shape, a square shape, an octagonal shape, or a spherical shape, etc. or radially form a radial hollow body. Small solid units are stacked between every two small 3D hollow units. Through regular and configurable arrangement of the hollow bodies in different size formed by the wire rods, the shapes and sizes of grid holes of the implant can be controlled according to different hardness and proliferation speeds requirements of soft/hard tissues, so as to adjust the required supporting strength and better mechanical prosperities of the implant, and further provide controllable proliferation speeds for the soft/hard tissues.
