In the process for producing bisphenol A comprising crystallizing an adduct of bisphenol A and phenol from a phenol solution of bisphenol A obtained by reacting phenol and acetone in the presence of an acid catalyst, treating the formed slurry by solid-liquid separation and removing phenol from the solid component, a layer of the crystalline adduct is formed on a filter by filtering slurry (1) comprising the crystalline adduct, washing the layer of the adduct with a washing liquid, dissolving the layer of the adduct in a solution comprising phenol, producing slurry (2) comprising the crystalline adduct by crystallization, and separating the crystalline adduct by centrifugation of slurry (2). When bisphenol A is separated from the reaction mixture, the adduct of bisphenol A and phenol can be recovered from the mother liquor of the reaction efficiently at a high purity in accordance with the above process.