Abstract: The two sticky powders of Polyvinyl Alcohol（PVA） and starch were mixed with 316L stainless steel powder,and a water-based solution was jetted to the mixed powder, then the green bodies were fabricated by 3DP method of 3D printing technology. After being debonded and sintered in vacuum, the printed parts of porous stainless steel were obtained.The effects of PVA content in the mixed powder and sintering temperature on the dimensional shrinkage, porosity, mechanical properties, tensile fracture morphology and carbon content of the printed parts were studied. The results show that with the PVA content increasing, the shrinkage, porosity and carbon content of the printed parts increase, while the mechanical properties don’t simply increase or decrease. With the sintering temperature increasing, the shrinkage and mechanical properties increase, the porosity and carbon content decrease. The morphology of tensile fracture shows the metallurgical bonding of powder particles getting more compact. At last, the properties of the printed parts are compared with the corresponding required parameters of bulk stainless steel 022Cr17Ni12Mo2（316L） and the medical implant materials.