The invention discloses a statistic analysis system in a cloud platform. The statistic analysis system comprises the cloud platform, a man-machine operation module composed of a picture input module, a voice input module and a text input module, a data processing module, a statistic analysis module and a database. According to the statistic analysis system, data is arranged in the cloud platform, so that the system overload is well avoided; text, voice and picture input modes can be adopted, so that the application range of the system is expanded; and meanwhile an analysis algorithm in the system can be updated in real time, so that various statistic analysis requirements are met.