The invention relates to a mother liquor concentration and solidification all-in-one machine. The mother liquor concentration and solidification all-in-one machine comprises a stirring drier, an evaporator, a gas-liquid separator, a condenser, a recycled solvent receiving tank and a vacuum pump, wherein a steam outlet is formed in the upper end of the evaporator, a discharge hole is formed in thelower end of the evaporator, and the discharge hole in the lower end of the evaporator is connected with an inlet in the upper end of the stirring drier in a sealing manner; the steam outlet in the upper end of the evaporator is connected with a gas inlet of the gas-liquid separator in the sealing manner, a gas outlet of the gas-liquid separator is connected with a gas inlet of the condenser, a gas outlet of the condenser is connected with a pipeline of the vacuum pump, and a condensate outlet of the condenser is connected to the recycled solvent receiving tank. According to the mother liquorconcentration and solidification all-in-one machine provided by the invention, the scarping plate film evaporator is coupled with the stirring drier, evaporated and concentrated materials can directlyfall into the drying machine, all unnecessary conveying transport processes are omitted, and the probability that the materials are polluted is reduced; moreover, the technological process is continuous, the escape of a solvent cannot be caused, and pollution and safety accident potentials are avoided.