The utility model relates to a measuring tool field especially relates to a graduated flask is surveyed and is read device for soil test, its characterized in that: including test platform, guide bar and infrared ray digital reader, the guide bar upright in test platform is surperficial, its one end with test platform connects fixedly, the infrared ray digital reader includes infrared probe and data processor, infrared probe cover disposed on the guide bar is peripheral, constitutes sliding fit between the two, data processor with constitute the data connection between the infrared probe. The utility model has the advantages that: but the volume of solution in the precision measurement graduated flask reduces the error of estimating the reading, the gross mass of solution in the measurable quantity graduated flask, simple structure, maneuverability are strong, multiple functional.