The invention relates to a groove lens installation accuracy measurement system based on global positioning system (GPS) locating technology, which comprises a correction car, a GPS locating device, an accuracy measurement device, a rotary device and a vertical lifting device, wherein the vertical lifting device is arranged on the correction car; the rotary car is positioned on the vertical lifting device; the accuracy measurement device is arranged on the rotary device; the GPS locating device is arranged on the accuracy measurement device or the rotary device, or is relatively fixed with the accuracy measurement device; preferably, the GPS locating device comprises a GPS module and a curved guide rail or a zigzag guide rail, or comprises a first GPS module, a second GPS module and a straight line guide rail, or comprises at least three GPS modules; and the accuracy measurement device comprises a first laser, a second laser, a light-sensitive surface and a straight-line push rod. The groove lens installation accuracy measurement system is ingenious in design and simple in structure, is capable of realizing the measurement for the groove lens installation accuracy, and has the characteristics of being low in cost, convenient in operation, easy to implement and the like, thus being suitable for large-scale popularization and application.