An improved solid-state coordination method namely wet coordination has been developed to synthesize carbon-coated monoclinic Li3V2(PO4)3 rapidly at a low temperature of 600°C in 1h. The structure of the sample was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM) and energy dispersive analysis of X-rays (EDAX). The diffusion coefficient of the lithium ions was measured by cyclic voltammetry (CV). The electrochemical behavior of the sample exhibits a high initial discharge capacity of 130mAhg−1, which is very close to its theoretical capacity of 132mAhg−1 under 95mAg−1 (0.67C) in the range of 3.3–4.3V (vs. Li/Li+). These results suggest that wet coordination is a promising method for large-scale production of carbon-coated Li3V2(PO4)3.