Co-Ti co-doped cathode material LiNi0.8Co0.2-xTixO2 (0≤x≤0.1) with a high tamping-density for Li ion battery was prepared by a molten-salt synthesis method using eutectic molten salt 0.62LiNO3-0.38LiOH, high-density precursor Co-doped Ni(OH)2 and TiO2 powder. X-ray diffraction analysis shows that the synthesized material has a well-developed layered α-NaFeO2 structure. LiNi0.8Co0.2-xTixO2 has homogeneous particles with average sizes of 1-5 μm and the particles become smaller with Ti content increasing. The tamping-density of LiNi0.8Co0.15Ti0.05O2 reaches to 3.17 g·cm-3. Charge-discharge tests show that LiNi0.8Co0.15Ti0.05O2 has an initial discharge capacity as high as 169 mAh·g-1 and excellent capacity retention in the range 3.0-4.3 V at a specific current of 0.2 C.