Introduction: Dysphagia is a common reason for gastroenterology consultation. Esophageal manometry is recommended for the exploration of dysphagia, when gastroscopy is normal and esophageal biopsies are negative. The advent of high-resolution manometry (HRM) has led to the development of a new classification of esophageal motor disorders. The goal of this study is to evaluate the frequency and identify the type of esophageal motor disorders in dysphagic patients with normal upper digestive endoscopy. Materials and Methods: 141 patients with dysphagia with normal upper gastrointestinal endoscopy, negative esophageal biopsies and HRM were included. Esophageal motor disorders have been identified according to the Chicago classification. Results: HRM was pathological in 87 cases (61.7%). It revealed achalasia in 74 patients (52.5%). It was a type I achalasia in 23 patients (16.3%), type II in 44 patients (31.2%) type III in 7 cases (5%). It showed motor disorders that could correspond to scleroderma in 6 patients (4.2%), obstruction of the oesogastric junction in 4 cases (2.8%), and a jackhammer oesophagus in 3 cases (2.1%). HRM was normal in 54 patients (38.3%). Conclusion: The HRM of the esophagus represents an undeniable progress in the exploration of the motor system of the esophagus, mainly dysphagia with normal endoscopy. Achalasia, which can now be classified into 3 types according to HRM results, remains the most frequently found primary motor disorder.