Aflexible, stretchable and electrically conductive nanofiber composite with superhydrophobicity wasfabricated by ultrasonication induced carbon nanotubes (CNTs) decoration onto the polymer nanofiber,followed by methyltrichlorosilane (MTS) modification. The introduction of CNTs and polysiloxanederived from MTS improved the superhydrophobicity, conductivity, thermal stability and mechanicalproperties of the nanofibrous membrane. The superhydrophobicity and electrical conductivity could bemaintained during the cyclic stretching. The nanofiber composite membrane could be utilized toseparate the oil from the oil/water mixture regardless of pH of water, exhibiting a largeflux, highefficiency and good recyclability.