Using meta-analysis, this study reviews results of past qualitative studies in Taiwan that examined factors of maternal attachment toward delineating moderating variables and postulating a post-hoc structural analytic model. The final analysis was based on 23 articles, 110 statistical results, and more than 43500 individuals from combined samples. Results indicated that: (a) Insecure attachment between male and their mothers far exceeded that between female and their mothers; (b) children from intact family (not including single-parent families) have significantly more secure maternal attachment (small effect size); (c) maternal parenting behaviors that were accepting and caring have significant positive relationships with children’s secure maternal attachment (large effect size) and significant negative relationship with children’s insecure maternal attachment (above average effect size); (d) parenting behaviors characterized by mothers who encouraged autonomy has significant negative relationship with children’s insecure maternal attachment (medium effect size); and (e) secure attachment between mothers and their family of origin has significant positive relationship with secure attachment between mothers and their children, and vice versa. In other words, secure and insecure attachment with family of origins has significant cross-generational transmission effect.