In the BOE-007 series smart thermal gun sight, artificial intelligence technology is applied to the field of firearms. And the automatic gun calibration, smart ranging, and simple manipulation patent technologies are adopted. It subversively solves some problems such as difficulty in infrared gun calibration, low pointing accuracy, and complicated operations, which greatly improves the overall equipment effectiveness of the firearms. At the same time, it can be used as a monocular hand-held infrared observation device. In these series of products, the connecting seat can be changed to equip with a wide range of gun families, so as to observe and aim at targets in all kinds of environments day and night.