The invention relates to the field of polymer reprocessing, and discloses a device for condensing a rubber polymer. The device comprises: a first condensation kettle (F1), a first water separation pipeline (G1), a second condensation kettle (F2), a second water separation pipeline (G2) and a third condensation kettle (F3) which are mutually sequentially connected in series. A hot water outlet of the first water separation pipeline (G1) communicates with a hot water inlet of the first condensation kettle (F1), and a first flow control valve (K1) is arranged on a communicating pipeline of the hot water outlet of the first water separation pipeline (G1) and the hot water inlet of the first condensation kettle (F1); and/or a hot water outlet of the second water separation pipeline (G2) communicates with the hot water inlet of the first condensation kettle (F1), and a second flow control valve (K2) is arranged on a communicating pipeline of the hot water outlet of the second water separation pipeline (G2) and hot water inlet of the first condensation kettle (F1). According to the device disclosed by the invention, the energy consumption can be reduced, the solvent recovery rate can be improved, and the solvent content in the rubber polymer can be reduced.