The development of Metal Injection Molding(MIM)industry was reviewed.The production methods of MIM powder and some typical MIM processes,which were the two chief fadors affecting the MIM industry of 21st century. Aerospace industry: aircraft wing hinge, rocket nozzle, missile tail, ceramic turbine blade core Automotive industry: ignition control lock parts, turbocharger rotor, valve rail parts, automotive brake parts, automotive sunblock parts …