Treating patients as if they are family members is a very popular saying in medical professions, but it is often regarded as an unattainable idea or slogan that is merely being praised by everyone. However, in fact, the expectation of an ideal doctor-patient relationship in clinical situations is especially important to those disadvantaged patients and their family members. Is it possible to treat patients as if they are family members? If it is possible, how can it be? Also, what kind of principles can help people not only make this idea possible, but also continue to carry it out in the real life. Reviewing the philosophies in Confucian's love-with-distinction; Taoist's way of ”虛”and ”無” and Buddhist's theory of removing ”我執” to ”空”,none of them can help people achieve the following goal: ”treating patients as if they are family members.” In fact, only the disinterested spirit of Moism: love-without-distinction can make the idea possible. Therefore, medical treatment is based on a trust between doctors and patients. In accordance with Mohist's theory: love-without-distinction, people feel relieved to entrust their health to their doctors who treat them as if they are families. People only concentrate on certain things, because they care. In order to understand patients' needs, medical professionals must stay focused, so they can interpret patients' body language and their signs of diseases.Moism's love-without-distinction is not without making the distinctions between ”you” and ”me.” The true idea of Moism is to transform oneself to a selfless person who is devoted in a coexist situation. In addition, Mohist does not mean to solely rely on an individual's talent, but is to consolidate a cohesive and centripetal force in a group to benefit the society and to save the world. More importantly, the spirit of Mohist group in modern times focuses on social service. Nowadays, medical treatment requires cooperation with team spirit. With Mohist's selfless and service-oriented inspiration, it is feasible to establish a doctor-patient relationship that applies the ideas of treating patients as if they are family members.