The porous 60wt% Zr-40wt% Ti alloys have been developed to fix a prosthesis to bone by tissue ingrowth. Mechanical properties and pore structures of the porous Zr-Ti alloys were investigated as dental implant materials. The porous Zr-Ti alloys might have suitable open pore size for bone ingrowth. The microstructures of the porous Zr-Ti alloys were acicular α. The compressive strength was much higher than that of cortical bone. The bending strength was approximately half of the compressive strength. The elastic modulus was almost in the same range as the elastic modulus of cortical bone. The fatigue tests of the porous Zr-Ti alloys show that it might satisfactorily endure repetitive biting force even in the molar region.