A high Mg phosphate tailings comprehensive utilization research is essentially leaching to remove the magnesium and phosphorus in it and eventually made containing magnesium and phosphorus or other nutrients compound fertilizer. Phosphate tailings utilization in China were introduced, focused on a high Mg phosphate tailings chemistry, phase composition and reaction characteristics and kinetics of the dissolution results. High Mg phosphate tailings comprehensive utilization to achieve industrialization needs more extensive and deeper researches.