The invention discloses an 
odor detection 
system based on carrier gas sample introduction. The 
odor detection 
system is characterized by comprising a carrier gas source, a gas 
pipe, a pressure stabilizing valve A, a pressure gauge, a flow stabilizing valve, a flowmeter, a 
pipe filter, a detection gas sample introduction 
injector, a gas filter chamber, a gas filter column array, a thermostatic chamber, a gas detection chamber, a 
sensor array, a detection 
signal collector, 
computer control software, a pressure stabilizing valve B and a 
waste gas outlet. According to the 
odor detection 
system, detection gas is carried by carrier gas with stable pressure and stable flow, is filtered, enters the gas detection chamber, detected by the 
sensor array and is discharged from the 
waste gas outlet, meanwhile, the detection 
signal collector collects sensor signals, the 
computer control software performs 
data analysis finally, and a detection result is obtained. Compared with the odor detection system based on suction sample introduction in the prior art, the system improves and optimizes a gas sample introduction program, and detection stability and sample distinguishing capacity are further improved.