Provided is an anchorage preparation buccal tube having at least two arch tubes for receiving correction arch wire, wherein the axis inclination angle of at least one arch tube is a negative value. The lines of said arch tubes or the projections thereof on the buccal surface intersect with each other. The buccal tube can be designed into having a plurality of cross-arranged arch wire tubes, the physician can insert the correction arch wire into arch tube with suitable angle to recline the molar so as to increase anchorage in different stages according to the anchorage value needed for correction.