The utility model discloses a slurry stripping tower with overflow weirs. The slurry stripping tower comprises a tower body and the overflow weirs, wherein a chloroethylene gas outlet, a slurry inlet, a steam inlet, a slurry outlet and an emptying opening are formed in the tower body sequentially from top to bottom; tower plates are arranged in the tower body; top surfaces of all the tower plates are provided with the overflow weirs; the overflow weirs are a plurality of vertical plates which are fixed on the top surfaces of the tower plates; the vertical plates are provided with openings; the openings of two adjacent vertical plates are mutually staggered; liquid flowing channels are formed by the clearances and the openings of the vertical plates on the top surfaces of the tower plates and are winding and communicated; and a plurality of tower plates in the same shape are distributed in the tower body along the vertical direction in a laminated mode at intervals to form a tower plate group. By the slurry stripping tower, a chloroethylene monomer can be removed from polyvinyl chloride (PVC) slurry; and the slurry stripping tower is energy-saving, environment-friendly and high in heat transfer efficiency and mass transfer efficiency and has a good steam stripping effect.