The utility model discloses a new recovery system for recovering acid and alkali from viscose sodium sulfate waste liquid by a bipolar membrane electrodialysis method. The new recovery system comprises a bipolar membrane electrodialysis membrane module device, a sulfuric acid recovery pipeline, an alkali recovery pipeline, a pretreatment device, a reverse osmosis concentration device, an electrodialysis concentration device and a low-temperature multi-effect concentration device, wherein the pretreatment device is communicated with the bipolar membrane electrodialysis membrane module device; the bipolar membrane electrodialysis membrane module device is communicated with the reverse osmosis concentration device; the reverse osmosis concentration device is communicated with the electrodialysis concentration device; the electrodialysis concentration device is communicated with the low-temperature multi-effect concentration device; a sulfuric acid outlet end and an alkali outlet end of the low-temperature multi-effect concentration device are respectively communicated with the sulfuric acid recovery pipeline and the alkali recovery pipeline. The new recovery system has the beneficial technical effects of increasing the regeneration recovery rate of acid and alkali in the viscose waste liquid, reducing the damages of impurities in the waste liquid to the bipolar membrane, prolonging the service life of the bipolar membrane and ensuring the smoothness of bipolar membrane electrodialysis and subsequent procedures.