Gastroesophageal reflux disease (GERD) is the most common gastrointestinal 
diagnosis recorded during visits to outpatient clinics in west countries. The 
prevalence of symptom-defined GERD in China is as high as 3% to 5%. Asa 
dysfunction, GERD is characterized by reflux and heartburn. The pathophysiologic 
process of GERD is very complicated and subtle. The spectrum of injury from 
long-term reflux of acid or bile includes damage mucosa, Barrett's esophagus, 
dysplasia, and esophageal cancer. Therefore, the therapies of GERD should focus 
on controlling symptom,treating complications, and surveillance the possibility 
of oncologic transform. As with therapy with proton-pump inhibitors (PPI), 
modifying lifestyle is another most important modality for most GERD. The window 
of surgical treatment for GERD is narrow. Surgical therapy is alternative 
management approach to the patients with PPI failure, complications, or huge 
hernia. The laparoscopic minimally invasive procedure improves the acceptance of 
patients to surgical therapy, but the long-term complication and drawbacks of 
anti-reflux surgery cannot be ignored, and which is even more common than open 
procedures. The limitations of current therapy for GERD have encouraged a search 
for more effective treatment.The Linx sphincter augmentation device has been 
developed to address this gap with improvement of the barrier function of LES 
and reversible design if necessary.