Abstract: Gastroesophageal reflux disease (GERD) is a common disease of digestive system. In recent years， its incidence keeps increasing year by year. GERD has various clinical manifestations and can cause a series of corresponding clinical manifestations， and the disease takes the throat as the core and involves the respiratory and digestive systems， the ear， nose and mouth. Timely， accurate and comprehensive diagnosis is the premise to improve the effect of GERD treatment. In the clinic，the detection method of GERD is numerous. This paper summarizes the detection methods for GERD diagnosis to help clinicians select appropriate methods in the diagnosis of the clinical needs in the hospital's conditions.

Key words: gastroesophageal reflux disease, diagnosis