Using moleculer design method,we have synthesized a water soluble multifunctional anti-wear lubricant(OPMZ)which contains both molybdenum, and zinc.Its characterization,performance determination and application test were carried out.The results show that OPMZ had excellent antiwear property, good copper and iron corrosion-inhibiting property and desirable water solution stability. HWBF including 0.2% OPMZ was superior to foreign similar HWBF. It can be widely used as lubricanting additive in oil well drilli...