NOVELTY - A glyphosate recrystallization apparatus comprises a crystallization kettle provided with an inlet for glyphosate paste, an alkaline mother liquor metering tank at the bottom and a acid mother liquor metering groove that is connected through the top of a conveying pipeline to the crystallizing kettle. The crystallizing kettle is connected to a suction filter groove, mother liquor suction buffer tank and acid mother liquor middle groove, and the acid mother liquid middle groove is connected to the acid mother liquor metering groove.    USE - Glyphosate recrystallizing apparatus (claimed).    ADVANTAGE - The apparatus solves the problems due to incomplete reaction, multi-impurity, water and high drying process. The apparatus allows recrystallizing of glyphosate with high yield and normal granularity. The raw material is easy to obtain, the process is simple, economical, eliminates large amount of impurities in product and reduces environmental pollution.    DETAILED DESCRIPTION - A glyphosate recrystallization apparatus comprises a crystallization kettle provided with an inlet for glyphosate paste, an alkaline mother liquor metering tank at the bottom and an acid mother liquor metering groove that is connected through the top of a conveying pipeline to the crystallizing kettle. The crystallizing kettle is connected to a suction filter groove, mother liquor suction buffer tank and acid mother liquor middle groove, and the acid mother liquid middle groove is connected to the acid mother liquor metering groove. The side wall of the crystallizing kettle is connected to the water returning circulation system through the conveying pipe, the crystallizing kettle has feeding pipe equipped with a circulation water inlet system. The crystallizing kettle is set with spiral conveying pipe and a steam system conveying pipe through crystallizing kettle side wall and spiral conveying pipe tail part is equipped with steam condensed water outlet pipe. The mother liquor suction buffer tank is connected to the feed delivery pipe and vacuum system. An INDEPENDENT CLAIM is included for glyphosate recrystallization process.