#$%^&*AU2016101700A420161117.pdf#####ABSTRACT The present invention provides a water soluble granule of glufosinate-ammonium, comprising glufosinate-ammonium, a surfactant and a carrier. Further, the water soluble granule of glufosinate-ammonium also comprises a chelator and a synergist. A glufosinate-ammonium pesticide which attains better solubility, dissolving stability, low foamability and good efficacy in high concentration of hard water, is obtained in the present invention by adjusting the type of auxiliaries of the water soluble granule of glufosinate-ammonium and using in combination with proper adjuvants, which enable the synergistic effect of various components. It is particularly suitable for countries and regions of higher water hardness.