The embodiment of the invention provides an information display system of big data. The system includes: an information storage module, which is used for storing and receiving the already-collected big data; a big-data preprocessing module, which is used for preprocessing the already-collected big data, wherein preprocessing includes normalization, filtering and clustering; an intelligent analysismodule, which is used for carrying out analysis of the big data according to a received instruction, and comprehensively utilizing the data, which are provided by the big-data preprocessing module, for event causality analysis; and an information display module, which is used for generating a data analysis task, passing the same to the intelligent service analysis module, and receiving a result returned by the intelligent analysis module. The analysis and evaluation result of enterprise information and various types of detailed data are hierarchically and comprehensively presented in real time through visualization technology which is capable of interaction. By applying the embodiment of the invention, the problem that real-time performance, high effectiveness and interactivity of traditional data processing methods are poorer is solved.