Abstract: Current augmented and mixed reality engines face several technical challenges in manufacturing applica-tions, including insufficient realism in rendering, difficulties in balancing fidelity and real-time perfor-mance for large-scale industrial scenarios, poor compatibility with existing industrial CAD software and data, and limited multi-device collaboration capabilities for real-time tasks. This work proposes a design framework for AR/MR application development tailored to industrial settings. The framework comprises an application development engine and an algorithmic engine. The algorithmic engine integrates microservice components for data exchange, tracking and localization, environmental perception, and cloud-client ren-dering. It employs a unified workflow to coordinate cloud-client collaboration, optimizing resource sched-uling and load balancing while supporting adaptive rendering and interactive logic migration across multi-ple devices. The application development engine enables efficient AR/MR application development through this unified workflow, facilitating low-code development and seamless deployment on the algo-rithmic engine. Validated in assembly and simulation tasks for domestically developed heavy equipment, this framework enhances digital collaboration efficiency in assembly and inspection processes.