Large muscle defect negatively influences people's life, the common treatment is muscle transplantation but limited by donor source, large area wound, etc. Therefore, a muscle tissue scaffold with superimposed vascular network was developed. For ensuring the performance of fascia layer which alternated by poly(ethylene-co-vinyl alcohol) (EVOH) nanofiber mats encapsulated with Ag, the mechanical properties and water vapor transmission of different samples (7.5%, 10%, 12.5% EVOH solution densities with 0.02, 0.05, 0.08 g/ml of Ag, respectively) were mainly discussed. Meanwhile, the main parameters (voltage, tip-to-collector distance, solution density, concentration of Ag) were compared to find their influence on fabricating nanofibers.