Summary of case history, The patient, Mr. Huang, 47 years old, was hospitalized at the outpatient department of Guangdong Provincial Hospital of Chinese medicine on October 13, 2020 due to "difficulty in falling asleep for 3 years and increased blood sugar for 3 months". The patient had difficulty falling asleep 3 years ago and needed to take western sleeping pills for nearly 1 year. He was found to have diabetes in physical examination 3 months ago and was hospitalized in the local hospital. During the hospitalization, he used insulin pump to reduce blood sugar. After discharge, the patient did not take hypoglycemic drugs.Recently, he felt that insomnia was aggravated and blood sugar control was poor, self measured fasting blood glucose was 8.67 mmol/l, and postprandial blood glucose was not monitored,so he came to our hospital for treatment. Four diagnostic information: not much speech, a little dry mouth, prefer cold drink, difficulty in falling asleep, more dreams after sleep, with good appetite, urinate and defecate normally, dark red tongue, thin yellow fur, pulse string.,TCM diagnosis, type 2 Diabetes; iinsomnia (syndrome of liver stagnation and internal obstruction of blood stasis).,Western medicine diagnosis, type 2 diabetes;insomnia.,Therapeutic methods, It was treated with pure Chinese medicine, and the treatment method was to soothe the liver and clear away heat, activate blood circulation and remove blood stasis. The prescription of traditional Chinese medicine is based on the liver soothing medicine string and blood activating medicine string of " eight methods of dynamic-static sequential". Relax his emotions, regulate his diet, and regulate his daily life.,Clinical outcomes, The patient gradually stopped sleeping western medicine, and could sleep on his own, and the blood sugar gradually stabilized. During the follow-up of 3 months, the patient did not need to take any Western medicine, and had a good sleep and stable blood sugar control. Through Professor Fan's treatment, we can realize the treatment of diabetes and insomnia with pure Chinese medicine.