Many dementia patients in the middle and late stages will appear obvious mental behavioral abnormalities, some serious enough to be dangerous to others and themselves. For common problems can be dealt with in this way: 1, restlessness: first of all, we must find the cause of restlessness, such as the patient wants to go home, want to go to the toilet or physical discomfort, etc., to be immediately resolved and eliminated, in addition to distraction can also reduce the symptoms, you can and the patient to watch TV, talk about things that interest the patient. 2. Repetitive behavior: patients often forget what they have just said or done, so they often ask the same questions or repeat the same things, when this happens, you can let them do different things to distract their attention. Or write down the questions often asked by the patients and show them to strengthen the memory; if necessary, the patients can be given physical comfort to calm down the patients’ anxiety. 3, hallucinations, delusions: with the progress of the disease, the patient may appear some hallucinations and delusions, these may be the precursor of physical disease , to record and tell the doctor. It is recommended to avoid arguing with the patient about the authenticity of what the patient sees or hears, and to respond promptly to the emotions expressed by the patient and provide mental comfort. It may also be possible to divert the patient’s attention to other topics and activities; turn off the television or change to another station when violent and disturbing television programs are on; make sure that the patient is safe and does not have access to any objects that can be used to harm people. 4. Aggressive Behavior: (1) Minimize the risk of aggressive behavior by not having dangerous objects around the person with dementia who exhibits aggressive behavior. (2) Be wary of patients with such behavior. (3) Keep communication with the patient simple, expressing the patient’s needs through identification and imitation. In conclusion, in the face of a patient with dementia, caregivers or family members will certainly have psychological and behavioral reactions, caregivers should have great patience and love, rather than simple and violent methods of rejection, so as not to hurt their self-esteem, to pay attention to the emotional communication with the patient, through the gentle touch of the body to express the warmth and care in daily life needs to be slowly experienced by the caregiver to find out the best suitable for the individualization of the method. In daily life, caregivers need to slowly experience and feel the best method suitable for individualization.