The purpose of the study was to investigate: the relationship between child-rearing style and attachment for adolescence and their mothers in Taiwan. The sample consisted of 338 pairs of adolescence and their mothers. Instruments used in this study include "Mother´s Child-Rearing Style"(mother used)、"Mother´s Child-Rearing Style" (adolescence used)、"My Experience Inventory "(mother used)and "My Experience Inventory" (adolescence used). Data obtained in this study were analyzed by canonical correlation analysis. The primary findings are as follows: (1) With regard to the intergenerational transmission of child-rearing style, the result indicated that maternal grandmother´s child-rearing style seems to be directly intergenerational transmitted to mother´s child-rearing style. (2) The maternal grandmother´s child-rearing style seems to be intergenerational transmitted to mother´s child-rearing style which was mediated by the mother´s attachment. (3) With regard to the intergenerational transmission of attachment, the result indicated that mother´s attachment seems not to be directly intergenerational transmitted to adolescence´s attachment.(4)The mother´s attachment seems to be intergenerational transmitted to the adolescence´s attachment which was mediated by the mother´s child-rearing style.