Abstract: The pre opening operation is the core process of the intelligent zinc stripping system in zinc electrolysis, and the pre opening effect directly determines whether the subsequent processes can operate automatically and continuously. This paper takes the new generation intelligent zinc stripping machine developed by the Mining and Metallurgical Technology Group as the research object, analyzes the basic mechanism and opening principle of the intelligent zinc stripping machine, proposes a pre opening recognition technology for the intelligent zinc stripping machine based on the YOLOv5 algorithm, and conducts simulation analysis and experimental verification. The experimental results show that the average recognition accuracy of the pre opening contour reaches 99%, which solves the problem of the intelligent zinc stripping system not being able to continuously operate and can well meet production needs. It has important engineering application guidance significance.