A cloud scraping system using pre-scraped big data includes an information providing server which, when receiving a scraping request from a user terminal, provides the user terminal with response information to the received scraping request, and a big data storage which stores pre-scraped information, wherein when the scraping request is about static information, the information providing server acquires the response information using the pre-scraped information. According to the above cloud scraping system using pre-scraped big data, there is an advantage that it is possible to quickly respond to a scraping request from the user terminal afterwards by pre-scraping and storing static information in the big data storage. Additionally, it is possible to improve the scraping server operation efficiency by making a proper use of a single or multi-processing scraping server based on policy information of a scraping target external institution.