3D printing technology is a leading technology for producing 3D virtual shape product. It is getting more popular by its accuracy and three dimensional objects. The objective of thesis work is to present a technology review on additive manufacturing processes and to produce prototypes of human spare parts such as organs by using 3D printer. Fused deposition modeling additive manufacturing process is used for prototyping of human organs. Human organs are designed by solid modeling software. Thermoplastic polymer materials like polylactic acid, acrylonitrile butadiene styrene and nylon are used in this process. The Author concludes that fused deposition modeling additive manufacturing process can be simplified by bio printer additive manufacturing process. Human living cell and biomaterial can be used as a material in this process. Organs can be designed by solid modeling software. The scheme is to explore 3D printing technology for producing human artificial organs for saving thousands lives. Further experiment is necessary for functional and clinical use of printed organs.