The utility model discloses a total amount of pollutants discharged controlling means of enterprise, include: industrial computer, the close SM2 safety circuit of state, IC radio frequency card reader, data collection card, the industrial computer passes through board year serial ports and links to each other with the close SM2 safety circuit of state, and the close SM2 safety circuit of state is used for authentication to encrypt with communicating, the industrial computer links to each other with being used for the IC radio frequency card reader who reads user's smart card through the USB interface, data collection card passes through the PCI -E bus and links to each other with the industrial computer, and data collection card supports digital input passageway, analog input passageway, switching value input channel for acquire the data and the state of outside flowmeter, level gauge, analysis appearance. This total amount of pollutants discharged controlling means of enterprise, the convenience is assembled to the framework that adopts industrial control main board to add the extension integrated circuit board, can freely expand peripheral acquisition board card quantity as required, and adopts hardware to encrypt, supports state secret SM2 asymmetric arithmetic, and the security is higher.