We report the characterization of mixed oxides nanocomposite nanofibers of (1 - x) ZnO-(x)SnO2 (x a parts per thousand currency sign 0.45) synthesized by electrospinning technique. The diameter of calcined nanofibers depends on Sn content. Other phases like SnO, ZnSnO3, and Zn2SnO4 were absent. Photoluminescence studies show that there is a change in the blue/violet luminescence confirming the presence of Sn in Zn-rich composition. Present study shows that the crystalline nanocomposite nanofibers with stoichiometry of (1 - x)ZnO-(x)SnO2 (x a parts per thousand currency sign 0.45) stabilize after the calcination and possess some morphological and optical properties that strongly depend on Sn content.