Abstract: To address the challenges of multi-variety and multi-size adaptation in the labeling of power control and protection devices, this paper presents an all-category automatic labeling system. The key innovations include: (1)Automatic identification and precise localization based on machine vision (industrial camera and image algorithms); (2) A flexible mechanical configurationSintegrating a multi-axis servo module and an adjustable-pressure labeling head, achieving a high accuracy of ±0.11mm; (3)Digitalized process management through the(collaborative) framework of PLC, host computer, and MOM system. The system was deployed in a power equipment plant, successfully adapting to 19,122 types of chassis models. Experimental results show that the labeling accuracy rate is ≥99.5%, and the production efficiency reaches 150 pieces/hour, marking a 300% improvement over manual operations..