The invention provides a processing system for removing organic matters in evaporated mother liquor. By means of the mutual cooperation of an extracting tank, an evaporated mother liquor recycling tank, an extracting agent recycling tank, a mixed liquid recycling tank and an organic solution recycling tank, the organic matters in the evaporated mother liquor can be effectively removed; meanwhile, the evaporated mother liquor and the extracting agent can be recycled and reused; the recycled evaporated mother liquor returns to an evaporating system to evaporate and concentrate, so that the production cost is reduced, and the secondary pollution phenomenon is avoided.