The invention discloses an adsorbing material with beta-CD (Cyclodextrin) coupled on surface of PUF (Polyurethane Foam) and a preparation method and application thereof. The method is characterized by taking the PUF as a base material, exposing amino groups on the surface of the PUF by using a hydrochloric acid boiling method, coupling beta-CD molecules to the surface of the PUF by carrying out heating reflux reaction in a beta-CD water solution through a molecular coupling technology of an aldehyde compound, and carrying out heat soaking, thus obtaining the adsorbing material with the beta-CD coupled on the surface of the PUF. The adsorbing material disclosed by the invention has better hydrophily, and the water absorption rate can excess 2000 percent; the beta-CD solid carrier amount and the water absorption rate of the adsorbing material can be regulated in a large range, the adsorbing material has stronger adsorption ability on phenol in water, the adsorbed phenol can be parsed and regenerated by using an ethanol solution, the regenerated adsorbing material can be continuously used for phenol adsorption, and the adsorption ability is not obviously reduced after three times of adsorption-parse circulation.