An exhaust gas purification apparatus which is installed in a flow channel of an exhaust gas discharged from an engine, includes: a first purification device that purifies one component contained in the gas; a heating device that heats the purification device to a predetermined temperature in a period from before the engine is started to a first point in time that is after the engine is started; control device that controls an air-fuel ratio of the gas so as to obtain a air-fuel ratio suitable for purifying the one component in a period from the time when the engine is started to a point in time that is on or after a time at which the purification device is heated to the predetermined temperature; and an adsorption device that communicates with the downstream of the first purification device and adsorbs another component contained in the gas.