This application provides an association method and device, and relates to the field of communications. The method comprises: obtaining image data in a visual field area of an imaging device; dividing the visual field area into multiple visual field subareas; obtaining first attribute information of an object in any one of the multiple visual field subareas by means of beam scanning; and establishing a correspondence between the first attribute information of the object in the visual field subarea and image data corresponding to the visual field subarea. By means of the association method and device, a high-accuracy correspondence between the object in the visual field area of the imaging device and the first attribute information of the object can be established, which is beneficial to presenting a user with the attribute information of the corresponding object in a more accurate and intuitive way.