Abstract: Aiming at the problems of cumbersome steps and low efficiency in information processing and error analysis of the existing time-grating measurement systems, this paper proposes a time-grating measurement system based on LabVIEW. The measurement system reads and analyzes the bottom position information of a sensor to achieve data acquisition, real-time positioning, spectrum analysis and error processing. The experimental results show that, as the measurement error analysis of the sensor is accurate, the system runs stably, and multiple functional modules are integrated into a system platform, which greatly improves the measurement efficiency.