The invention relates to a catalyst loading component and a loading method thereof for a catalytic distillation tower, comprising a catalyst basket and a bracket. The catalyst basket consists of a basket body, an upper cover and a bottom support, wherein the upper cover is mounted at the upper end of the basket body; the bottom support is mounted at the lower part of the basket body; the height of the basket body from the bottom support of the catalyst basket to the upper cover is 1.1-2 times of the height of the portiforium part of a cover hood in the catalytic distillation tower; the height from the bottom support to the lower basket body is 1.1-2 times of the height of a down-flow spout above a column plate in the catalytic distillation tower; the bracket is in a frame structure matched with the cover hood; and the bottom support of the catalyst basket is arranged on the bracket. The method is used for the catalytic distillation tower, realizes forcible redistribution of liquid in the tower, prolongs the flowing path of a gas phase and a liquid phase in a catalyst bed, enhances the holdup of liquid in a reaction area and ensures the mass exchange and catalytic effect. The loading method has simple process, convenient operation, improved efficiency, low cost and easy actualization and is helpful to fully exert the action of the catalyst.