Air pressure sensor testing system

The invention provides an air pressure sensor testing system, which comprises a multi-channel air path access tool, a fixing assembly and a multi-channel signal acquisition switching circuit, and is characterized in that the multi-channel air path access tool comprises a standard pressure controller and a replaceable one-to-multi-path air path tool which are connected with each other; the fixing assembly comprises a fixed supporting part and a replaceable part which are connected with each other, the replaceable part is provided with a plurality of fixing holes, and the plurality of fixing holes are used for realizing fixed installation of the to-be-tested baroceptor; the multichannel signal acquisition switching circuit comprises a fixed circuit part and a replaceable circuit part which are electrically connected, the fixed circuit part is used for transmitting acquired and converted digital information to an upper computer, and the replaceable circuit part is provided with a plurality of different electrica