316L stainless steel fiber felt was used as raw material and the porous materials with porosity of 70%~95% were prepared by different sintering techniques. Furthermore, the effects of diameter of fiber, porosity, sintering temperature and holding time on tensile strength were investigated. The results indicate that the tensile process of the porous materials with stainless steel fiber can be divided into three stages: elastic stage, plastic deformation stage and fracture stage. Moreover, the tensile strength gradually decreases with the increasing of the diameter of fiber and porosity. In addition, the tensile strength of porous materials increases with the sintering temperature or holding time increasing.