The invention provides a clinical data statistical analysis method, system and device and a storage medium. The method mainly comprises the steps: determining related data accommodation and arrangement conditions according to medical semantics, screening out corresponding data, and completing the grouping of the data; and determining a logic expression for searching clinical data according to an analysis demand, and obtaining a statistical analysis result according to the logic expression. By adopting the method, on one hand, online completion of data input, arrangement and storage can be realized, then intelligent setting is carried out according to the medical semantic storage and exclusion conditions, accurate data grouping can be realized, and the efficiency of early-stage data preparation work is greatly improved; on the other hand, later data statistical analysis is graphical one-key operation, data export is supported, the professional threshold problem is solved, and the methodis suitable for independent operation of medical staff.