About 60 nm Sb2Se3 nanoparticles are uniformly embedded in a porous carbon substrate to prepare a Sb2Se3/C composite through a combination of pyrolysis reduction and solid-phase selenization. The Sb2Se3/C anode exhibits excellent sodium storage capacity. The initial discharge capacity is up to 420 mA h g-1 at 0.1 A g-1, and the specific capacity still remains 339 mA h g-1 after 1000 cycles, with a high capacity retention rate of 80%.