Aiming at the problem that the collimating target recognition algorithm of optical path docking cannot distinguish the adhesion state of double targets, a dual optical target recognition method based on BLOB region feature analysis is proposed in this paper. The experimental results show that: The dual optical target recognition algorithm proposed in this paper can not only realize the recognition of completely separated analog optical targets and main laser targets, the error is less than 3 pixels, the processing time is less than 1 second, but also can realize the recognition of optical targets in the state of adhesion and a single independent optical target. It meets the requirements of adaptability, accuracy, and efficiency of optical path butt collimation image recognition algorithm. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.