2. Service principle Psychological nursing is as service as other medical work. Nurses should provide patients with technical services and life services from the perspective of service to meet their physiological and psychological needs.
3. There is no unified model of psychological nursing based on the principle of pertinence. Nurses should take various measures according to the different psychological state of each patient at different stages of the disease, so that it varies from person to person. Therefore, when communicating with patients, nurses should be good at observing, talking and inspiring patients to tell their own stories, and if necessary, they can also use psychological tests and other means to grasp the patient's condition and psychological state in time.
4. Inspirational principle Nurses should use the knowledge of related disciplines to educate and inspire patients in psychological care, so as to change their cognitive level, eliminate their wrong understanding of diseases, and change their attitude towards diseases and treatment from passive to active.
5. Self-care principle Self-care is a self-practice activity for one's own survival, health and comfort, including health maintenance, self-diagnosis, self-medication, self-prevention and participation in health care. Good self-care is a manifestation of mental health, which helps to maintain patients' self-esteem and self-confidence and meet their psychological needs. Therefore, nurses should encourage, help and guide patients to realize themselves as much as possible.