Aspend simulation software and laboratory model were used to study the recovery technology of extractant methanol in glycine production process. Two paths were designed : on the one hand, methanol in glycine centrifugal mother liquor was recovered ; on the other hand, the methanol in the tail gas of glycine drying was recovered. It has been proved in the laboratory that the methanol content produced by the distillation column is≥98.5% and the energy consumption is the lowest when the packed distillation column is used, the preheating temperature is 60 ℃ and the reflux ratio is 0.5. The method of condensation-water absorption-desorption-molecular sieve absorption can also absorb methanol in glycine drying exhaust gas to the maximum extent, thus further reducing methanol consumption.