Patient Right to Autonomy Act is the first law which takes patient as the subject. In that could patient have the right to refuse taking life-sustaining treatment with the advanced decision by signing it up. It could guarantee terminal ill, permanent vegetative state, irreversible coma, severe dementia or other disease conditions which were announced by the government to have the right to accept or refuse life-sustaining treatment or artificial nutrition and hydration. By developing the context of advance care planning with the basic of Patient Right to Autonomy Act, it would be analyzed in this paper how the idea of advanced decision in practice and the norms cooperate with each other. The model of the advanced care planning would also be explained. Taking 4Ps (personalized, participatory, predictive and preventive) as the core basics, the advanced care planning could offer possibility to realize rightfully and to make family members harmonize with each other. The aim of Patient Right to Autonomy Act that guarantees the right to natural death, respects the autonomy of patients and promotes the relationship between physicians and patients, could in the end be achieved.