The invention discloses a methyl gluceth-containing glyphosate aqua synergist aid. The synergist aid is a methyl gluceth-containing special surfactant composition for glyphosate aqua, and contains an effective component of methyl gluceth. The glyphosate aqua synergist aid is suitable for various salt aquae of glyphosate, has the advantages of excellent moisture retention property, substantial synergistic effect on preparations, strong biodegradability and environmental protection facilitation, and meets sustainable development requirements of the glyphosate preparations.