Detection system for providing standard gas for electrochemical sensor

The present application relates to a detection system for providing standard gas for an electrochemical sensor. The detection system for providing the standard gas for the electrochemical sensor includes a standard gas housing assembly, with an air outlet disposed thereon; a gas path shut-off valve, comprising a plurality of mutually independent gas paths, wherein the gas path shut-off valve is disposed on the air outlet of the standard gas housing assembly; at least one accommodating cavity, wherein each accommodating cavity is disposed in the standard gas housing assembly, and each accommodating cavity body contains the standard gas; and each accommodating cavity is in communication with the gas path shut-off valve, and one accommodating cavity is corresponding to one gas path of gas path shut-off valve; a standard gas pressure pump, wherein the input end of the standard gas pressure pump is in communication with the air passage shut-off valve; an output pipe, wherein one end of theoutput pipe is connected