An odor measurement apparatus comprising: an odor sensor for detecting an odor, a display unit having a screen; and an imaging device having a lens portion, an arithmetic processing device configured to control the behavior of the odor sensor and the imaging device by executing a control program, wherein an imaging direction of the imaging device and an introduction direction of air when the air is guided to a sensor surface of the odor sensor through an introduction port are substantially the same direction, wherein the odor sensor is in the form of a discrete card-like odor sensor chip that can be attached to and detached from the odor measurement apparatus, characterised in that an opening/closing device capable of opening and closing the introduction port is arranged in said odor measurement apparatus, and in that the arithmetic processing device is configured in such a way that: when a measurement start button displayed on said display unit is pressed while the control program is executed, a baseline measurement by the odor sensor is performed based on the behavior control provided by the arithmetic processing device, and wherein, when the measurement start button is pressed after the baseline measurement is completed, image capture by the imaging device accompanied by opening of the opening/closing device, and odor measurement by the odor sensor, are performed based on the behavior control provided by the arithmetic processing device. an odor sensor for detecting an odor, a display unit having a screen; and an imaging device having a lens portion, an arithmetic processing device configured to control the behavior of the odor sensor and the imaging device by executing a control program, wherein an imaging direction of the imaging device and an introduction direction of air when the air is guided to a sensor surface of the odor sensor through an introduction port are substantially the same direction, wherein the odor sensor is in the form of a discrete card-like odor sensor chip that can be attached to and detached from the odor measurement apparatus, characterised in that an opening/closing device capable of opening and closing the introduction port is arranged in said odor measurement apparatus, and in that the arithmetic processing device is configured in such a way that: when a measurement start button displayed on said display unit is pressed while the control program is executed, a baseline measurement by the odor sensor is performed based on the behavior control provided by the arithmetic processing device, and wherein, when the measurement start button is pressed after the baseline measurement is completed, image capture by the imaging device accompanied by opening of the opening/closing device, and odor measurement by the odor sensor, are performed based on the behavior control provided by the arithmetic processing device. when a measurement start button displayed on said display unit is pressed while the control program is executed, a baseline measurement by the odor sensor is performed based on the behavior control provided by the arithmetic processing device, and wherein, when the measurement start button is pressed after the baseline measurement is completed, image capture by the imaging device accompanied by opening of the opening/closing device, and odor measurement by the odor sensor, are performed based on the behavior control provided by the arithmetic processing device.