Temporomandibular joint disorder is one of the four most common diseases of the oral and maxillofacial area (caries, periodontal disease, malocclusion, and temporomandibular joint disorder). TMJ disorder is characterized by abnormal jaw movement (abnormal opening and opening pattern), opening and closing of the mouth with popping murmur and pain in the TMJ area, and in severe cases, headache, neck pain, shoulder pain and neurosis. The prevalence in the population is high, 28-88% according to domestic and international literature, and about 15-26% may require treatment. Some patients can be cured by conservative treatment, while some patients need surgical intervention to cure. In clinical practice, many patients ask me, “Doctor, what do I need to pay attention to in my diet for this TMJ disease?” The answer is as follows: ① Eat a light and nutritious diet; ② Pay attention to dietary balance; ③ Eat soft food, do not eat nuts or difficult to bite food; ④ Avoid spicy and stimulating food; ⑤ Avoid eating cold and fried food; ⑥ Avoid bad habits such as “chewing betel nut and chewing gum”; ⑦ It is recommended to cut apples and other fruits into small slices; ⑧ Avoid eating ⑧ Avoid eating “high sugar, fatty” food; ⑨ Patients with osteoarthrosis should not eat “seafood” because kelp and sea fish contain blood uric acid; ⑩ Foods containing high oxalic acid should also be eaten less, such as spinach, tomatoes, sweet potatoes, celery, etc., which affects calcium absorption. You can eat more “salmon, soy products, cheese”, etc. You can also drink more “green tea”, especially for patients with TMJ arthritis and osteoarthrosis. Dietary habits play an important role in the development of TMJ disorders, and they also play an important role in the outcome of TMJ disorder treatment. Proper adjustment of dietary habits after developing TMJ disorder, eating more of what you should eat and less of what you should not eat, is important for the treatment of TMJ disorder.