It has been investigated the phenol sorption from water solution by P,N-contained polyampholyte synthesized on the base of polybutadiene. The experimental results of sorption izotherm have been analyzed by the Langmuir and Freundlich models and model parameters for investigated system have been calculated. It has been established that phenol sorption take place with formation of the monolayer, consisting of sorbate molecules, and sorption of izoterm at equilibrium concentration of phenols till 110.2 mq/l in equal degree submits to Langmuor and Freundlich equations and at more high values only to Freundlich equation