In this work, GO/Fe3O4/Pd nanocomposite has been prepared via a simple method and its catalytic activity has been tested for the reduction of 4-nitrophenol (4-NP), Methyl Orange (MO), Methylene blue (MB) and Congo red (CR) in the presence of NaBH4 in aqueous medium at room temperature. X-ray diffraction (XRD), Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT-IR) were employed to characterize the morphology and composition of GO/Fe3O4/Pd nanocomposite. Furthermore, the catalyst can be recovered and recycled several times without significant losing of its activity in reduction process. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.