The invention discloses a big data platform security access system and method, electronic equipment and computer storage medium. The system comprises an authority authentication module, a data encryption and decryption module, an audit module and a gateway module, wherein the authority authentication module is suitable for managing authority information of a user role to data resources; the data encryption and decryption module is suitable for encrypting written data and decrypting the read data; the audit module is suitable for collecting a data operation log in a real time, matching the data operation log with alarm rules and performing real-time warning on data operation corresponding to the data operation log if the data operation log is matched with the alarm rules; the gateway module is suitable for performing rule detection on the data flowing into/flowing out of a gateway by utilizing preset rules and performing warning or blocking-up on data access conforming to the preset rules; therefore, the data security is improved, and the security of big data platform access is improved.