Satellite positioning data quality control method and system and storage medium

The invention discloses a satellite positioning data quality control method, a satellite positioning data quality control system and a storage medium, which are applied to the technical field of satellite navigation positioning and can realize data quality control in real-time dynamic positioning and effectively improve the accuracy of satellite positioning. The method comprises the following steps: resolving data of a preset observation file through a preset residual positioning algorithm to obtain preset resolving data including a preset carrier phase residual sequence and a signal-to-noise ratio sequence; respectively grouping the preset carrier phase residual sequence and the signal-to-noise ratio sequence according to a preset classification condition to obtain grouped data; performing statistical analysis on the grouped data, and constructing a statistical corresponding relation between the carrier phase residual error and the signal-to-noise ratio so as to determine a cut-off signal-to-noise ratio thro