Blend nanofibers with mixture of polymer by using a multi-jet electrospinning system has receieved special attention in order to get uniform properties of nanofiber mats and increasing production rate, recently. In this work a multi-jet electrospinning system is designed for blending of two component polymers which can not dissolved in the same solvent. A blend of PVA/PA with different blend ratio 0/100, 35/65, 50/50, 65/35 and 100/0 are electrospun to produce nanowebs that can have potential applications in wound dressing and drug delivery. After producing nanowebs, the effect of blend ratio on different properties such as strength, air permeabilit, porosity, average diameter, water and water vapor absorption are investigated. This study shows that properties of blend nanowebs are largely affected by blend ratio of PVA/PA. By increasing the PVA ratio in the blend, strength will decrease that is while air permeability, porosity, average diameter, water and water vapor absorption will increase