The invention relates to a catalyst which is used in the polyalkylbenzene alkyl transfer, has mainly solved the shortcoming of low catalyst activeness, the big benzene dosage, and high impurity content in the former technology. Through the technical program of crystallization aluminum silicate material which has the table 1XRD diffraction data and catalyst which is composed by inorganic oxide compound, the invention has preferably solved the question and used in the industrial production of the polyalkylbenzene alkyl transfer.