The invention provides a channel measuring device and method. The device comprises a processor and at least one interface, wherein the processor is electrically connected with each interface, and eachinterface is correspondingly electrically connected with the channel of a to-be-measured instrument; the processor is used for acquiring the to-be-measured channel and controlling the interface corresponding to the to-be-measured channel to measure the instrument parameters of the channel according to set channel measuring rules after an instrument measuring instruction is received.