An exhaust gas sampling apparatus comprising: an exhaust gas introduction port for introducing exhaust gas; a diluent gas introduction port for introducing diluent gas; a main flow path of which one end is connected to the exhaust gas introduction port; a diluent gas flow path of which one end is connected to the diluent gas introduction port and the other end is connected to the main flow path; a sampling part that is provided at a connecting point between the main flow path and the diluent gas flow path or on a downstream side of the connecting point to collect part of diluted exhaust gas that is the exhaust gas diluted with the diluent gas; a diluted exhaust gas sampling flow path of which one end is connected to the sampling part and the other end is connected to a diluted exhaust gas analyzing device; a diluent gas sampling flow path of which one end is connected to the diluent gas flow path and the other end is connected to a diluent gas analyzing device; and a flow rate control part that is provided in the diluent gas sampling flow path to control a flow rate of the diluent gas flowing through the diluent gas sampling flow path, wherein: the sampling part includes a plurality of venturis (81a, 81b, 81c) connected in parallel that control a flow rate of the diluted exhaust gas to be introduced into the diluted exhaust gas analyzing device; characterized in that the flow rate control part includes a plurality of venturis (91a, 91b, 91c) connected in parallel that control a flow rate of the diluent gas to be introduced into the diluent gas analyzing device, and in that a combination among the plurality of venturis (81a, 81b, 81c) constituting the sampling part and a combination among the plurality of venturis (91a, 91b, 91c) constituting the flow rate control part are the same, wherein the respective critical flow rates of the venturis (91a, 91b, 91c) constituting the flow rate control part and the respective critical flow rates of the venturis (81a, 81b, 81c) constituting the sampling part are the same. an exhaust gas introduction port for introducing exhaust gas; a diluent gas introduction port for introducing diluent gas; a main flow path of which one end is connected to the exhaust gas introduction port; a diluent gas flow path of which one end is connected to the diluent gas introduction port and the other end is connected to the main flow path; a sampling part that is provided at a connecting point between the main flow path and the diluent gas flow path or on a downstream side of the connecting point to collect part of diluted exhaust gas that is the exhaust gas diluted with the diluent gas; a diluted exhaust gas sampling flow path of which one end is connected to the sampling part and the other end is connected to a diluted exhaust gas analyzing device; a diluent gas sampling flow path of which one end is connected to the diluent gas flow path and the other end is connected to a diluent gas analyzing device; and a flow rate control part that is provided in the diluent gas sampling flow path to control a flow rate of the diluent gas flowing through the diluent gas sampling flow path, wherein: the sampling part includes a plurality of venturis (81a, 81b, 81c) connected in parallel that control a flow rate of the diluted exhaust gas to be introduced into the diluted exhaust gas analyzing device; characterized in that the flow rate control part includes a plurality of venturis (91a, 91b, 91c) connected in parallel that control a flow rate of the diluent gas to be introduced into the diluent gas analyzing device, and in that a combination among the plurality of venturis (81a, 81b, 81c) constituting the sampling part and a combination among the plurality of venturis (91a, 91b, 91c) constituting the flow rate control part are the same, wherein the respective critical flow rates of the venturis (91a, 91b, 91c) constituting the flow rate control part and the respective critical flow rates of the venturis (81a, 81b, 81c) constituting the sampling part are the same. the sampling part includes a plurality of venturis (81a, 81b, 81c) connected in parallel that control a flow rate of the diluted exhaust gas to be introduced into the diluted exhaust gas analyzing device; characterized in that the flow rate control part includes a plurality of venturis (91a, 91b, 91c) connected in parallel that control a flow rate of the diluent gas to be introduced into the diluent gas analyzing device, and in that a combination among the plurality of venturis (81a, 81b, 81c) constituting the sampling part and a combination among the plurality of venturis (91a, 91b, 91c) constituting the flow rate control part are the same, wherein the respective critical flow rates of the venturis (91a, 91b, 91c) constituting the flow rate control part and the respective critical flow rates of the venturis (81a, 81b, 81c) constituting the sampling part are the same.