From the Hermeneutic point of view, this study is to understand the ideal model of M. P. P. (Mandated Parenting Program) in Taiwan. The study goals are as following: 1. through the dialogs between experts, deduct the ideal task of M. P. P. 2. Based on the ideal task being deducted, the situations of field works in M. P. P. are understood and discussed in this study. 3. The suggestions will be proposed in order to promote the effectiveness of M. P. P. As the result of study, four major ideal tasks are presented: Normality task, Secondary prevention task, Welfare task and Empowerment task. In the conclusion of study, there are five issues being discussed: 1. Normality task will be the starter during the involuntary relationship stage. 2. Secondary prevention tasks will be most important task in the M. P. P. 3. Welfare tasks will be much needed for the parents from poor families. 4. Case managers in social work agencies should ask counselor involve in Secondary prevention task aggressively. 5. Empowerment task are not only needed by clients but also by workers.