Capability of obtaining high capacity by exchanging more than one lithium ion has made lithium iron silicate (Li₂FeSiO₄) very attractive to be an ideal cathode material for lithium ion batteries. However, high deintercalation voltage and large deformation of Li₂FeSiO₄ are expected during the delithiation of the second lithium ion. In this work, the nominal 2% sulfur doped carbon coated Li₂FeSiO₄ composite was prepared by sol-gel precursor and solid-state reaction method. A well crystallized Pmn2₁ and P2₁ mixed phase was formed. The initial discharge capacity of 229.2 mAh/g was obtained at 0.1C and room temperature, which corresponds to 1.38 moles per formula unit. The capacity fluctuated to 185.6 mAh/g after 50 cycles, achieving the capacity retention of 81%.