Exhaust gas sampling apparatus

The present invention is one that, in an exhaust gas sampling apparatus having a configuration in which a heat exchanger is not provided on an upstream side of a CVS, regulates a flow rate of diluted exhaust gas flowing into an analytical device to a predetermined value, and provided with: a main flow path 4; the CVS 5 provided in the main flow path 4; a diluted exhaust gas sampling flow path 6 for sampling part of the diluted exhaust gas from the main flow path 4 to introduce the part into the analytical device 10; a flow rate control mechanism 7 that controls a flow rate of the diluted exhaust gas to be sampled through the diluted exhaust gas sampling flow path 6; and a control device 8 that sets a split flow ratio that is a ratio of the flow rate of the diluted exhaust gas to be sampled through the diluted exhaust gas sampling flow path 6 to a flow rate of the diluted exhaust gas flowing through the CVS 5, wherein the control device 8 uses the flow rate (Q CVS ) of the diluted exhaust gas flowing through the CVS 5 or a value (T CVS or P CVS ) related to the flow rate (Qcvs) of the diluted exhaust gas to set the split flow ratio (Q samp /Q CVS ) so as to make a flow velocity (V filter ) of the diluted exhaust gas flowing into the analytical device 10 equal to a predetermined value.