The invention relates to a blood-gas reaction monitor and control device which belongs to the technical field of fluid detection and comprises a gas supply system, a gas mixing tank, a gas-liquid reaction tank and a data acquisition and control device, wherein the gas supply system comprises a steel bottle cabinet and a steel bottle arranged in the steel bottle cabinet; through respective pipeline, the steel bottle and electromagnetic valves arranged on the pipelines are respectively connected with the gas mixing tank and the gas-liquid reaction tank which are communicated; the gas mixing tank is mutually communicated with the gas-liquid reaction tank; the gas mixing tank is internally provided with a pressure sensor, and the gas-liquid reaction tank is internally provided with a liquid-level detector, a pressure sensor, a pH electrode and a dissolved oxygen sensor; a plurality of gas concentration sensors are fixed on the lateral wall above the gas-liquid reaction tank; and the data acquisition and control device is used for controlling the electromagnetic valves connected to the pipelines and acquiring the measured data from the pressure sensor, the pH electrode, the dissolved oxygen sensor and the gas concentration sensors. The invention is suitable for the detection of aqueous solution and non aqueous solution, can detect gases such as oxygen, nitrogen, carbon monoxide, carbon dioxide, nitrogen oxide, nitrogen dioxide, and the like, is also suitable for the carrier gas performance analysis of natural blood including human and animals, and also has all functions of a blood gas analyzer.