Abstract: An assembly structure for a rangefinder positioning device is provided; an installation recess is provided on a surface housing of a rangefinder main body. An independent electronic locator can be disassembled and assembled through an installation hole in a center of an installation buckle. The installation buckle can be detachably provided in the installation recess by magnetic attraction, and a user can easily disassemble and install the electronic locator he wants to install; for example, when a rangefinder is needed for outdoor golf activities, it can be easily provided with the mature and popular AirTag on the market to achieve the positioning and anti-loss of the rangefinder by an AirTag software on a mobile phone. When the rangefinder is not needed or not needed for positioning, the AirTag can be easily disassembled and used for other purposes, which can save the design and manufacturing costs of the rangefinder.