In this work, we fabricated MoS2/WS2 heterostrucutures with decoration of Bi2S3 nanorods through different stacking sequences (MoS2/WS2 (bottom layer) + Bi2S3 (top layer) and Bi2S3 (bottom layer) + MoS2/WS2 (top layer), respectively). The morphology and structure were studied by scanning electron microscope (SEM), transmission electron microscope (TEM) and the X-ray powder diffraction (XRD). It was found that the hybrid structure with different stacking sequences was composed of Bi2S3 nanorods and MoS2/WS2 nanosheets. By UV-visible absorption spectra (UV-vis) and photoluminescence (PL) experiments, we found that the composite catalysts of both stacking sequences can promote visible-light utilization and accelerate the electron transportation. Electrochemical measurements (such as cyclic voltammetry (CV), linear sweep voltammetry (LSV) and electrochemical impedance spectroscope (EIS) under light illumination or in dark) indicated that the MoS2/WS2+Bi2S3 possessed higher photoelectrocatalytic activity towards hydrogen evolution reaction (HER) than that of Bi2S3+MoS2/WS2 due to its proper energy band alignment that facilitates the effective carrier separation, the lower charge transfer resistance, higher electrochemically active surface area as well as the fast electron transfer kinetics. Inspired by these observations, we believe that MoS2/WS2+Bi2S3 catalyst is a potential candidate for photoelectrocatalytic production of H-2. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.