Magnesium chloride loaded metallocene catalyst component, prepare method and application of the same

The invention relates to an alkyl aluminium oxygen alkyl/magnesium chloride complex carrier, which is prepared by adopting the method of grinding, and the method is simple without using solvent. The catalyst obtained by the front body of metallocene cooperation subject of the general formula 1 loaded by the carrier has good activity of catalyzing olefinic polymerization, thereby the obtained resin has very high bulk density.