Tremor that occurs when the limb is maintained in a certain position is called postural tremor, most commonly when the upper limb is flat and extended. Tremor is often suppressed during active movement, intensified during emotional stress, and disappears during complete rest and sleep. Postural tremor is one of the symptoms of Parkinson’s disease, also known as tremor palsy, which is the most common degenerative disease of the central nervous system in middle-aged and elderly people. It is mainly due to pathological changes in the cells located in the nigrostriatal area, which reduce the synthesis of dopamine and inhibit the function of acetylcholine, while the excitatory effect of acetylcholine is relatively enhanced. The result of the imbalance between the two is postural tremor. The exact cause of Parkinson’s disease is not well understood, therefore, preventive measures lack precise targeting, but many studies have confirmed that there is a causal relationship between many risk factors and the degeneration and necrosis of dopamine neurons in the midbrain substantia nigra, and if appropriate preventive measures can be taken to address the risk factors, it is certainly beneficial to prevent the onset of Parkinson’s disease and delay its progression. The prevention and care of Parkinson’s disease must pay attention to the dietary aspects. The dietary considerations for postural tremor caused by Parkinson’s disease: 1. Sufficient total calories can be given according to the patient’s age and activity level, and the diet should pay attention to meeting the supply of sugar and protein, with vegetable oil as the main ingredient and less animal fat. 2, inorganic salts, vitamins, dietary fiber supply should be sufficient. Eat more fresh vegetables and fruits, which can provide a variety of vitamins and promote intestinal peristalsis to prevent constipation. Patients sweat a lot and should pay attention to hydration. 3, food preparation should be soft, easy to digest, easy to chew and swallow, according to the semi-liquid or soft food supply. 4, the diet should be light, less salt; prohibit smoking, alcohol and stimulating foods, such as coffee, chili, mustard, curry, etc.. Adequate supply of water should be ensured.