An electronic nose positioning device, comprising: a carrier; an electronic nose disposed on the carrier; an adjusting mechanism configured to adjust the electronic nose to an odor sampling part of an object to be detected; wherein the electronic nose positioning device further comprises a laser sensing unit disposed on the carrier, the electronic nose, or the adjusting mechanism, and configured to scan the object to be detected, so as to determine a position of an odor sampling part of the object to be detected, wherein the laser sensing unit comprises at least one area laser sensor, and the at least one area laser sensor comprises: a first area laser sensor, whose scanning surface is a vertical scanning surface, configured to obtain side profile information of the object to be detected; and a second area laser sensor, whose scanning surface is a horizontal scanning surface, configured to obtain position and motion information of the object to be detected relative to the electronic nose; wherein the electronic nose positioning device further comprises: a controller configured to receive scan data of the first area laser sensor and the second area laser sensor and establish a side profile image of the object to be detected according to the scan data; wherein the controller is configured to calculate a position of the odor sampling part in the side profile image to determine a horizontal distance and a vertical distance of the odor sampling part relative to the object to be detected, and to cause the adjusting mechanism to adjust the electronic nose to the odor sampling part. a carrier; an electronic nose disposed on the carrier; an adjusting mechanism configured to adjust the electronic nose to an odor sampling part of an object to be detected; wherein the electronic nose positioning device further comprises a laser sensing unit disposed on the carrier, the electronic nose, or the adjusting mechanism, and configured to scan the object to be detected, so as to determine a position of an odor sampling part of the object to be detected, wherein the laser sensing unit comprises at least one area laser sensor, and the at least one area laser sensor comprises: a first area laser sensor, whose scanning surface is a vertical scanning surface, configured to obtain side profile information of the object to be detected; and a second area laser sensor, whose scanning surface is a horizontal scanning surface, configured to obtain position and motion information of the object to be detected relative to the electronic nose; wherein the electronic nose positioning device further comprises: a controller configured to receive scan data of the first area laser sensor and the second area laser sensor and establish a side profile image of the object to be detected according to the scan data; wherein the controller is configured to calculate a position of the odor sampling part in the side profile image to determine a horizontal distance and a vertical distance of the odor sampling part relative to the object to be detected, and to cause the adjusting mechanism to adjust the electronic nose to the odor sampling part. a first area laser sensor, whose scanning surface is a vertical scanning surface, configured to obtain side profile information of the object to be detected; and a second area laser sensor, whose scanning surface is a horizontal scanning surface, configured to obtain position and motion information of the object to be detected relative to the electronic nose; wherein the electronic nose positioning device further comprises: a controller configured to receive scan data of the first area laser sensor and the second area laser sensor and establish a side profile image of the object to be detected according to the scan data; wherein the controller is configured to calculate a position of the odor sampling part in the side profile image to determine a horizontal distance and a vertical distance of the odor sampling part relative to the object to be detected, and to cause the adjusting mechanism to adjust the electronic nose to the odor sampling part. a controller configured to receive scan data of the first area laser sensor and the second area laser sensor and establish a side profile image of the object to be detected according to the scan data; wherein the controller is configured to calculate a position of the odor sampling part in the side profile image to determine a horizontal distance and a vertical distance of the odor sampling part relative to the object to be detected, and to cause the adjusting mechanism to adjust the electronic nose to the odor sampling part.