The invention provides a stirring device production quality monitoring system based on multiple data sources and a method, and relates to the technical field of stirring device production quality monitoring. A data acquisition module is used for acquiring production data; a data storage module, a data type judgment module, a curve drawing and analysis module, an acquired data authenticity analysis module and a production quality analysis module in a data analysis system are used for carrying out deep analysis on the production data and monitoring operation states of stirring devices, authenticity of the acquired data and whether the production quality meets a regulated requirement. A human-machine interaction interface displays monitoring results. According to the invention, dynamic weighing accuracy of stirring devices in a blending process can be effectively monitored; it is achieved that an intelligent early warning is given out for fault stirring devices, and the operation states of the stirring devices, whether the acquired data is true and accurate and whether the production quality meets a regulated requirement are monitored, so quality risks are effectively eliminated, and powerful technical support is provided for stabilized soil/concrete/mixture quality monitoring of a construction project.